| 1 | /* |
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| 2 | * Copyright 2007-2008, Plutext Pty Ltd. |
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| 3 | * |
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| 4 | * This file is part of docx4j. |
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| 5 | |
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| 6 | docx4j is licensed under the Apache License, Version 2.0 (the "License"); |
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| 7 | you may not use this file except in compliance with the License. |
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| 8 | |
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| 9 | You may obtain a copy of the License at |
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| 10 | |
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| 11 | http://www.apache.org/licenses/LICENSE-2.0 |
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| 12 | |
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| 13 | Unless required by applicable law or agreed to in writing, software |
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| 14 | distributed under the License is distributed on an "AS IS" BASIS, |
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| 15 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 16 | See the License for the specific language governing permissions and |
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| 17 | limitations under the License. |
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| 18 | |
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| 19 | */ |
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| 20 | |
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| 21 | package org.docx4j.openpackaging.io; |
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| 22 | |
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| 23 | |
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| 24 | |
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| 25 | import java.io.FileNotFoundException; |
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| 26 | import java.io.FileOutputStream; |
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| 27 | import java.io.IOException; |
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| 28 | import java.io.OutputStream; |
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| 29 | import java.net.URI; |
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| 30 | import java.util.HashMap; |
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| 31 | import java.util.zip.ZipEntry; |
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| 32 | import java.util.zip.ZipOutputStream; |
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| 33 | |
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| 34 | import javax.xml.bind.JAXBContext; |
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| 35 | import javax.xml.bind.JAXBException; |
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| 36 | import javax.xml.bind.Marshaller; |
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| 37 | import javax.xml.bind.PropertyException; |
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| 38 | import javax.xml.transform.TransformerFactory; |
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| 39 | import javax.xml.transform.dom.DOMSource; |
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| 40 | import javax.xml.transform.stream.StreamResult; |
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| 41 | |
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| 42 | import org.apache.log4j.Logger; |
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| 43 | import org.docx4j.Docx4jProperties; |
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| 44 | import org.docx4j.convert.out.flatOpcXml.FlatOpcXmlCreator; |
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| 45 | import org.docx4j.docProps.core.CoreProperties; |
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| 46 | import org.docx4j.docProps.extended.Properties; |
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| 47 | import org.docx4j.jaxb.Context; |
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| 48 | import org.docx4j.jaxb.NamespacePrefixMapperUtils; |
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| 49 | import org.docx4j.openpackaging.URIHelper; |
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| 50 | import org.docx4j.openpackaging.contenttype.ContentTypeManager; |
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| 51 | import org.docx4j.openpackaging.exceptions.Docx4JException; |
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| 52 | import org.docx4j.openpackaging.packages.OpcPackage; |
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| 53 | import org.docx4j.openpackaging.parts.DocPropsCorePart; |
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| 54 | import org.docx4j.openpackaging.parts.DocPropsExtendedPart; |
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| 55 | import org.docx4j.openpackaging.parts.Part; |
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| 56 | import org.docx4j.openpackaging.parts.PartName; |
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| 57 | import org.docx4j.openpackaging.parts.WordprocessingML.BinaryPart; |
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| 58 | import org.docx4j.openpackaging.parts.relationships.Namespaces; |
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| 59 | import org.docx4j.openpackaging.parts.relationships.RelationshipsPart; |
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| 60 | import org.docx4j.relationships.Relationship; |
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| 61 | import org.w3c.dom.Document; |
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| 62 | |
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| 63 | |
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| 64 | /** |
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| 65 | * Save a Package object to a Zip file or output stream |
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| 66 | * @author jharrop |
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| 67 | * |
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| 68 | */ |
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| 69 | public class SaveToZipFile { |
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| 70 | |
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| 71 | private static Logger log = Logger.getLogger(SaveToZipFile.class); |
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| 72 | |
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| 73 | public SaveToZipFile(OpcPackage p) { |
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| 74 | |
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| 75 | this.p = p; |
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| 76 | |
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| 77 | } |
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| 78 | |
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| 79 | // The package to save |
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| 80 | public OpcPackage p; |
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| 81 | |
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| 82 | /** |
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| 83 | * This HashMap is intended to prevent loops. |
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| 84 | */ |
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| 85 | private HashMap<String, String> handled; |
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| 86 | |
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| 87 | /* Save a Package as a Zip file in the file system */ |
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| 88 | public boolean save(String filepath) throws Docx4JException { |
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| 89 | log.info("SAVING to " + filepath ); |
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| 90 | try { |
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| 91 | if (filepath.toLowerCase().endsWith(".xml") ) { |
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| 92 | return saveFlatOPC(new FileOutputStream(filepath)); |
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| 93 | } else return save(new FileOutputStream(filepath)); |
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| 94 | } catch (FileNotFoundException e) { |
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| 95 | throw new Docx4JException("Failed to save package to path " + filepath, e); |
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| 96 | } |
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| 97 | } |
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| 98 | |
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| 99 | /* Save a Package as a Zip file in the file system */ |
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| 100 | public boolean save(java.io.File docxFile) throws Docx4JException { |
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| 101 | log.info("Saving to" + docxFile.getPath() ); |
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| 102 | try { |
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| 103 | if (docxFile.getPath().toLowerCase().endsWith(".xml") ) { |
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| 104 | return saveFlatOPC(new FileOutputStream(docxFile)); |
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| 105 | } else return save(new FileOutputStream(docxFile)); |
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| 106 | } catch (FileNotFoundException e) { |
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| 107 | throw new Docx4JException("Failed to save package to path " + docxFile.getPath(), e); |
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| 108 | } |
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| 109 | } |
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| 110 | |
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| 111 | public boolean saveFlatOPC(OutputStream realOS) throws Docx4JException { |
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| 112 | |
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| 113 | try { |
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| 114 | FlatOpcXmlCreator worker = new FlatOpcXmlCreator(p); |
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| 115 | org.docx4j.xmlPackage.Package pkg = worker.get(); |
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| 116 | |
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| 117 | // Now marshall it |
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| 118 | JAXBContext jc = Context.jcXmlPackage; |
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| 119 | Marshaller marshaller=jc.createMarshaller(); |
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| 120 | |
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| 121 | marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE); |
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| 122 | NamespacePrefixMapperUtils.setProperty(marshaller, |
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| 123 | NamespacePrefixMapperUtils.getPrefixMapper()); |
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| 124 | |
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| 125 | marshaller.marshal(pkg, realOS); |
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| 126 | return true; |
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| 127 | } catch (Exception e) { |
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| 128 | throw new Docx4JException("Failed to save Flat OPC ", e); |
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| 129 | } |
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| 130 | |
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| 131 | } |
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| 132 | |
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| 133 | /* Save a Package as a Zip file in the outputstream provided */ |
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| 134 | public boolean save(OutputStream realOS) throws Docx4JException { |
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| 135 | handled = new HashMap<String, String>(); |
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| 136 | try { |
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| 137 | |
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| 138 | ZipOutputStream out = new ZipOutputStream(realOS); |
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| 139 | |
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| 140 | |
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| 141 | // 3. Save [Content_Types].xml |
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| 142 | ContentTypeManager ctm = p.getContentTypeManager(); |
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| 143 | out.putNextEntry(new ZipEntry("[Content_Types].xml")); |
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| 144 | ctm.marshal(out); |
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| 145 | out.closeEntry(); |
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| 146 | |
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| 147 | // 4. Start with _rels/.rels |
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| 148 | |
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| 149 | // <Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships"> |
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| 150 | // <Relationship Id="rId3" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/extended-properties" Target="docProps/app.xml"/> |
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| 151 | // <Relationship Id="rId2" Type="http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties" Target="docProps/core.xml"/> |
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| 152 | // <Relationship Id="rId1" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument" Target="word/document.xml"/> |
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| 153 | // </Relationships> |
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| 154 | |
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| 155 | String partName = "_rels/.rels"; |
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| 156 | RelationshipsPart rp = p.getRelationshipsPart(); |
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| 157 | //deprecatedSaveRawXmlPart(out, partName, rp.getDocument() ); |
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| 158 | // 2008 06 12 - try this neater method |
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| 159 | saveRawXmlPart(out, rp, partName ); |
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| 160 | |
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| 161 | |
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| 162 | // 5. Now recursively |
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| 163 | // addPartsFromRelationships(out, "", rp ); |
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| 164 | addPartsFromRelationships(out, rp ); |
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| 165 | |
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| 166 | |
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| 167 | // Complete the ZIP file |
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| 168 | // Don't forget to do this or everything will appear |
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| 169 | // to work, but when you open the zip file you'll get an error |
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| 170 | // "End-of-central-directory signature not found." |
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| 171 | out.close(); |
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| 172 | realOS.close(); |
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| 173 | } catch (Exception e) { |
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| 174 | e.printStackTrace() ; |
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| 175 | if (e instanceof Docx4JException) { |
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| 176 | throw (Docx4JException)e; |
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| 177 | } else { |
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| 178 | throw new Docx4JException("Failed to save package", e); |
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| 179 | } |
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| 180 | } |
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| 181 | |
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| 182 | log.info("...Done!" ); |
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| 183 | |
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| 184 | return true; |
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| 185 | } |
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| 186 | |
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| 187 | |
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| 188 | public void saveRawXmlPart(ZipOutputStream out, Part part) throws Docx4JException { |
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| 189 | |
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| 190 | // This is a neater signature and should be used where possible! |
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| 191 | |
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| 192 | String partName = part.getPartName().getName().substring(1); |
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| 193 | |
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| 194 | saveRawXmlPart(out, part, partName); |
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| 195 | } |
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| 196 | |
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| 197 | public void saveRawXmlPart(ZipOutputStream out, Part part, String zipEntryName) throws Docx4JException { |
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| 198 | |
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| 199 | try { |
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| 200 | |
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| 201 | if (part instanceof org.docx4j.openpackaging.parts.JaxbXmlPart) { |
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| 202 | |
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| 203 | // From docx4j 2.7.1, support setting some basic metadata |
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| 204 | // from docx4j.properties |
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| 205 | if (part instanceof DocPropsCorePart) { |
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| 206 | |
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| 207 | boolean dcWrite= Boolean.parseBoolean( |
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| 208 | Docx4jProperties.getProperties().getProperty("docx4j.dc.write", "false")); |
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| 209 | if (dcWrite) { |
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| 210 | CoreProperties cp = ((DocPropsCorePart)part).getJaxbElement(); |
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| 211 | |
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| 212 | // Only set creator if not already present |
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| 213 | String creator= Docx4jProperties.getProperties().getProperty("docx4j.dc.creator.value", "docx4j"); |
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| 214 | if (cp.getCreator()==null) { |
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| 215 | org.docx4j.docProps.core.dc.elements.ObjectFactory of = new org.docx4j.docProps.core.dc.elements.ObjectFactory(); |
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| 216 | cp.setCreator(of.createSimpleLiteral() ); |
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| 217 | cp.getCreator().getContent().add(creator); |
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| 218 | } |
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| 219 | |
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| 220 | String modifier= Docx4jProperties.getProperties().getProperty("docx4j.dc.lastModifiedBy.value", "docx4j"); |
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| 221 | cp.setLastModifiedBy(modifier); |
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| 222 | } |
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| 223 | } |
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| 224 | if (part instanceof DocPropsExtendedPart) { |
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| 225 | boolean appWrite= Boolean.parseBoolean( |
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| 226 | Docx4jProperties.getProperties().getProperty("docx4j.App.write", "false")); |
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| 227 | if (appWrite) { |
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| 228 | Properties cp = ((DocPropsExtendedPart)part).getJaxbElement(); |
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| 229 | |
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| 230 | cp.setApplication( |
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| 231 | Docx4jProperties.getProperties().getProperty("docx4j.Application", "docx4j") |
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| 232 | ); |
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| 233 | |
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| 234 | String version = Docx4jProperties.getProperties().getProperty("docx4j.AppVersion"); |
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| 235 | if ( version!=null ) { |
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| 236 | cp.setAppVersion(version); |
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| 237 | } |
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| 238 | |
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| 239 | } |
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| 240 | } |
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| 241 | |
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| 242 | // Add ZIP entry to output stream. |
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| 243 | out.putNextEntry(new ZipEntry(zipEntryName)); |
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| 244 | |
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| 245 | ((org.docx4j.openpackaging.parts.JaxbXmlPart)part).marshal( out ); |
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| 246 | |
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| 247 | // Complete the entry |
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| 248 | out.closeEntry(); |
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| 249 | log.info( "success writing part: " + zipEntryName); |
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| 250 | |
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| 251 | |
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| 252 | } else if (part instanceof org.docx4j.openpackaging.parts.CustomXmlDataStoragePart) { |
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| 253 | |
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| 254 | // Add ZIP entry to output stream. |
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| 255 | out.putNextEntry(new ZipEntry(zipEntryName)); |
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| 256 | |
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| 257 | ((org.docx4j.openpackaging.parts.CustomXmlDataStoragePart)part).getData().writeDocument( out ); |
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| 258 | |
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| 259 | // Complete the entry |
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| 260 | out.closeEntry(); |
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| 261 | log.info( "success writing part: " + zipEntryName); |
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| 262 | |
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| 263 | } else if (part instanceof org.docx4j.openpackaging.parts.XmlPart) { |
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| 264 | |
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| 265 | // Add ZIP entry to output stream. |
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| 266 | out.putNextEntry(new ZipEntry(zipEntryName)); |
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| 267 | |
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| 268 | Document doc = ((org.docx4j.openpackaging.parts.XmlPart)part).getDocument(); |
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| 269 | |
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| 270 | /* |
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| 271 | * With Crimson, this gives: |
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| 272 | * |
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| 273 | Exception in thread "main" java.lang.AbstractMethodError: org.apache.crimson.tree.XmlDocument.getXmlStandalone()Z |
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| 274 | at com.sun.org.apache.xalan.internal.xsltc.trax.DOM2TO.setDocumentInfo(DOM2TO.java:373) |
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| 275 | at com.sun.org.apache.xalan.internal.xsltc.trax.DOM2TO.parse(DOM2TO.java:127) |
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| 276 | at com.sun.org.apache.xalan.internal.xsltc.trax.DOM2TO.parse(DOM2TO.java:94) |
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| 277 | at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transformIdentity(TransformerImpl.java:662) |
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| 278 | at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:708) |
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| 279 | at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:313) |
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| 280 | at org.docx4j.model.datastorage.CustomXmlDataStorageImpl.writeDocument(CustomXmlDataStorageImpl.java:174) |
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| 281 | * |
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| 282 | */ |
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| 283 | DOMSource source = new DOMSource(doc); |
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| 284 | TransformerFactory.newInstance().newTransformer().transform(source, |
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| 285 | new StreamResult(out) ); |
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| 286 | |
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| 287 | |
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| 288 | // Complete the entry |
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| 289 | out.closeEntry(); |
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| 290 | log.info( "success writing part: " + zipEntryName); |
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| 291 | |
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| 292 | } else { |
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| 293 | // Shouldn't happen, since ContentTypeManagerImpl should |
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| 294 | // return an instance of one of the above, or throw an |
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| 295 | // Exception. |
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| 296 | |
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| 297 | log.error("PROBLEM - No suitable part found for: " + zipEntryName); |
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| 298 | } |
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| 299 | |
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| 300 | } catch (Exception e) { |
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| 301 | e.printStackTrace(); |
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| 302 | log.error(e); |
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| 303 | throw new Docx4JException("Problem saving part " + zipEntryName, e); |
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| 304 | } |
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| 305 | |
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| 306 | } |
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| 307 | |
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| 308 | |
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| 309 | /* recursively |
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| 310 | (i) get each Part listed in the relationships |
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| 311 | (ii) add the Part to the zip file |
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| 312 | (iii) traverse its relationship |
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| 313 | */ |
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| 314 | public void addPartsFromRelationships(ZipOutputStream out, RelationshipsPart rp ) |
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| 315 | throws Docx4JException { |
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| 316 | |
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| 317 | // for (Iterator it = rp.iterator(); it.hasNext(); ) { |
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| 318 | // Relationship r = (Relationship)it.next(); |
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| 319 | // log.info("For Relationship Id=" + r.getId() + " Source is " + r.getSource().getPartName() + ", Target is " + r.getTargetURI() ); |
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| 320 | for ( Relationship r : rp.getRelationships().getRelationship() ) { |
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| 321 | |
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| 322 | log.debug("For Relationship Id=" + r.getId() |
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| 323 | + " Source is " + rp.getSourceP().getPartName() |
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| 324 | + ", Target is " + r.getTarget() ); |
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| 325 | |
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| 326 | if (r.getType().equals(Namespaces.HYPERLINK)) { |
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| 327 | continue; // whether internal or external |
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| 328 | } |
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| 329 | |
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| 330 | if (r.getTargetMode() != null |
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| 331 | && r.getTargetMode().equals("External") ) { |
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| 332 | |
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| 333 | // ie its EXTERNAL |
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| 334 | // As at 1 May 2008, we don't have a Part for these; |
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| 335 | // there is just the relationship. |
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| 336 | |
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| 337 | log.warn("Encountered external resource " + r.getTarget() |
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| 338 | + " of type " + r.getType() ); |
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| 339 | |
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| 340 | // So |
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| 341 | continue; |
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| 342 | } |
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| 343 | |
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| 344 | try { |
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| 345 | //String resolvedPartUri = URIHelper.resolvePartUri(r.getSourceURI(), r.getTargetURI() ).toString(); |
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| 346 | |
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| 347 | String resolvedPartUri = URIHelper.resolvePartUri(rp.getSourceURI(), new URI(r.getTarget() ) ).toString(); |
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| 348 | |
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| 349 | // Now drop leading "/' |
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| 350 | resolvedPartUri = resolvedPartUri.substring(1); |
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| 351 | |
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| 352 | // Now normalise it .. ie abc/def/../ghi |
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| 353 | // becomes abc/ghi |
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| 354 | // Maybe this isn't necessary with a zip file, |
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| 355 | // - ZipFile class may be smart enough to do it. |
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| 356 | // But it is certainly necessary in the JCR case. |
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| 357 | // target = (new java.net.URI(target)).normalize().toString(); |
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| 358 | // log.info("Normalised, it is " + target ); |
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| 359 | |
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| 360 | // Document contents = getDocumentFromZippedPart( zf, target); |
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| 361 | |
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| 362 | if (!false) { |
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| 363 | log.debug("Getting part /" + resolvedPartUri ); |
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| 364 | |
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| 365 | Part part = p.getParts().get(new PartName("/" + resolvedPartUri)); |
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| 366 | |
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| 367 | if (part==null) { |
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| 368 | log.error("Part " + resolvedPartUri + " not found!"); |
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| 369 | } else { |
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| 370 | log.debug(part.getClass().getName() ); |
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| 371 | } |
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| 372 | |
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| 373 | savePart(out, part); |
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| 374 | |
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| 375 | } |
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| 376 | |
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| 377 | } catch (Exception e) { |
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| 378 | throw new Docx4JException("Failed to add parts from relationships", e); |
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| 379 | } |
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| 380 | } |
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| 381 | |
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| 382 | |
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| 383 | } |
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| 384 | |
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| 385 | |
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| 386 | /** |
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| 387 | * @param out |
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| 388 | * @param resolvedPartUri |
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| 389 | * @param part |
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| 390 | * @throws Docx4JException |
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| 391 | * @throws IOException |
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| 392 | */ |
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| 393 | public void savePart(ZipOutputStream out, Part part) |
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| 394 | throws Docx4JException, IOException { |
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| 395 | |
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| 396 | // Drop the leading '/' |
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| 397 | String resolvedPartUri = part.getPartName().getName().substring(1); |
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| 398 | |
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| 399 | if (handled.get(resolvedPartUri)!=null) { |
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| 400 | log.debug(".. duplicate save avoided .." ); |
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| 401 | return; |
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| 402 | } |
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| 403 | |
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| 404 | if (part instanceof BinaryPart ) { |
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| 405 | log.debug(".. saving binary stuff" ); |
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| 406 | saveRawBinaryPart( out, part ); |
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| 407 | |
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| 408 | } else { |
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| 409 | log.debug(".. saving " ); |
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| 410 | saveRawXmlPart( out, part ); |
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| 411 | } |
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| 412 | handled.put(resolvedPartUri, resolvedPartUri); |
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| 413 | |
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| 414 | // recurse via this parts relationships, if it has any |
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| 415 | RelationshipsPart rrp = part.getRelationshipsPart(false); //don't create |
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| 416 | if (rrp!= null ) { |
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| 417 | |
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| 418 | //log.debug("Found relationships " + rrp.getPartName() ); |
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| 419 | |
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| 420 | // Only save it if it actually has rels in it |
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| 421 | if (rrp.getRelationships().getRelationship().size()>0) { |
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| 422 | |
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| 423 | String relPart = PartName.getRelationshipsPartName(resolvedPartUri); |
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| 424 | //log.debug("Cf constructed name " + relPart ); |
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| 425 | |
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| 426 | saveRawXmlPart(out, rrp, relPart ); |
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| 427 | |
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| 428 | addPartsFromRelationships(out, rrp ); |
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| 429 | } |
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| 430 | } |
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| 431 | // else { |
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| 432 | // log.debug("No relationships for " + resolvedPartUri ); |
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| 433 | // } |
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| 434 | } |
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| 435 | |
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| 436 | protected void saveRawBinaryPart(ZipOutputStream out, Part part) throws Docx4JException { |
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| 437 | |
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| 438 | // Drop the leading '/' |
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| 439 | String resolvedPartUri = part.getPartName().getName().substring(1); |
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| 440 | |
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| 441 | try { |
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| 442 | // Add ZIP entry to output stream. |
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| 443 | out.putNextEntry(new ZipEntry(resolvedPartUri)); |
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| 444 | |
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| 445 | java.nio.ByteBuffer bb = ((BinaryPart)part).getBuffer(); |
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| 446 | byte[] bytes = null; |
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| 447 | bytes = new byte[bb.limit()]; |
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| 448 | bb.get(bytes); |
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| 449 | |
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| 450 | out.write( bytes ); |
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| 451 | |
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| 452 | // Complete the entry |
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| 453 | out.closeEntry(); |
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| 454 | |
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| 455 | } catch (Exception e ) { |
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| 456 | throw new Docx4JException("Failed to put binary part", e); |
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| 457 | } |
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| 458 | |
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| 459 | log.info( "success writing part: " + resolvedPartUri); |
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| 460 | |
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| 461 | } |
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| 462 | |
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| 463 | |
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| 464 | |
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| 465 | } |
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