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Merge pull request #593 from veraPDF/pdfua2
PDF/UA-2. Add GFPDTextField
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52 changes: 52 additions & 0 deletions
52
validation-model/src/main/java/org/verapdf/gf/model/impl/pd/GFPDTextField.java
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|---|---|---|
| @@ -0,0 +1,52 @@ | ||
| /** | ||
| * This file is part of veraPDF Validation, a module of the veraPDF project. | ||
| * Copyright (c) 2015, veraPDF Consortium <[email protected]> | ||
| * All rights reserved. | ||
| * | ||
| * veraPDF Validation is free software: you can redistribute it and/or modify | ||
| * it under the terms of either: | ||
| * | ||
| * The GNU General public license GPLv3+. | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with veraPDF Validation as the LICENSE.GPL file in the root of the source | ||
| * tree. If not, see http://www.gnu.org/licenses/ or | ||
| * https://www.gnu.org/licenses/gpl-3.0.en.html. | ||
| * | ||
| * The Mozilla Public License MPLv2+. | ||
| * You should have received a copy of the Mozilla Public License along with | ||
| * veraPDF Validation as the LICENSE.MPL file in the root of the source tree. | ||
| * If a copy of the MPL was not distributed with this file, you can obtain one at | ||
| * http://mozilla.org/MPL/2.0/. | ||
| */ | ||
| package org.verapdf.gf.model.impl.pd; | ||
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| import org.verapdf.as.ASAtom; | ||
| import org.verapdf.gf.model.tools.DictionaryKeysHelper; | ||
| import org.verapdf.model.pdlayer.PDTextField; | ||
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| /** | ||
| * @author Sergey Shemyakov | ||
| */ | ||
| public class GFPDTextField extends GFPDFormField implements PDTextField { | ||
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| public static final String TEXT_FIELD_TYPE = "PDTextField"; | ||
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| public GFPDTextField(org.verapdf.pd.form.PDFormField pdFormField) { | ||
| super(pdFormField, TEXT_FIELD_TYPE); | ||
| } | ||
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| @Override | ||
| public String getV() { | ||
| return DictionaryKeysHelper.getStringOrStreamEntryStringRepresentation(simpleCOSObject, ASAtom.V); | ||
| } | ||
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| @Override | ||
| public String getRV() { | ||
| return DictionaryKeysHelper.getRichTextStringOrStreamEntryStringRepresentation(simpleCOSObject, ASAtom.RV); | ||
| } | ||
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| @Override | ||
| public Boolean getcontainsRV() { | ||
| return simpleCOSObject.knownKey(ASAtom.RV); | ||
| } | ||
| } |
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94
validation-model/src/main/java/org/verapdf/gf/model/tools/DictionaryKeysHelper.java
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| @@ -0,0 +1,94 @@ | ||
| /** | ||
| * This file is part of veraPDF Validation, a module of the veraPDF project. | ||
| * Copyright (c) 2015, veraPDF Consortium <[email protected]> | ||
| * All rights reserved. | ||
| * | ||
| * veraPDF Validation is free software: you can redistribute it and/or modify | ||
| * it under the terms of either: | ||
| * | ||
| * The GNU General public license GPLv3+. | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with veraPDF Validation as the LICENSE.GPL file in the root of the source | ||
| * tree. If not, see http://www.gnu.org/licenses/ or | ||
| * https://www.gnu.org/licenses/gpl-3.0.en.html. | ||
| * | ||
| * The Mozilla Public License MPLv2+. | ||
| * You should have received a copy of the Mozilla Public License along with | ||
| * veraPDF Validation as the LICENSE.MPL file in the root of the source tree. | ||
| * If a copy of the MPL was not distributed with this file, you can obtain one at | ||
| * http://mozilla.org/MPL/2.0/. | ||
| */ | ||
| package org.verapdf.gf.model.tools; | ||
|
|
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| import org.xml.sax.InputSource; | ||
| import org.verapdf.as.ASAtom; | ||
| import org.verapdf.cos.*; | ||
| import org.w3c.dom.Document; | ||
| import org.w3c.dom.Node; | ||
| import org.w3c.dom.NodeList; | ||
| import org.verapdf.xmp.impl.ByteBuffer; | ||
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| import javax.xml.parsers.DocumentBuilder; | ||
| import javax.xml.parsers.DocumentBuilderFactory; | ||
| import java.io.InputStream; | ||
| import java.util.logging.Level; | ||
| import java.util.logging.Logger; | ||
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| public class DictionaryKeysHelper { | ||
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| private static final Logger LOGGER = Logger.getLogger(DictionaryKeysHelper.class.getCanonicalName()); | ||
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| public static String getStringOrStreamEntryStringRepresentation(COSObject dictionary, ASAtom key) { | ||
| COSObject object = dictionary.getKey(key); | ||
| if (object == null || object.empty()) { | ||
| return null; | ||
| } | ||
| COSBase base = object.getDirectBase(); | ||
| if (base.getType() == COSObjType.COS_STREAM) { | ||
| base = ((COSStream)base).getStringFromTextStream(); | ||
| } | ||
| if (base.getType() == COSObjType.COS_STRING) { | ||
| return base.getString(); | ||
| } | ||
| return null; | ||
| } | ||
|
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| public static String getRichTextStringOrStreamEntryStringRepresentation(COSObject dictionary, ASAtom key) { | ||
| try { | ||
| COSObject object = dictionary.getKey(key); | ||
| if (object == null || object.empty()) { | ||
| return null; | ||
| } | ||
| COSBase base = object.getDirectBase(); | ||
| InputStream inputStream; | ||
| if (object.getType() == COSObjType.COS_STREAM) { | ||
| inputStream = base.getData(); | ||
| } else if (object.getType() == COSObjType.COS_STRING) { | ||
| inputStream = new ByteBuffer(object.getDirectBase().getString().getBytes()).getByteStream(); | ||
| } else { | ||
| return null; | ||
| } | ||
| DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder(); | ||
| builder.setErrorHandler(null); | ||
| Document doc = builder.parse(new InputSource(inputStream)); | ||
| return getAllNodeText(doc); | ||
| } catch (Exception e) { | ||
| LOGGER.log(Level.WARNING, "Error while parsing rich text entry " + key + " in the object " + dictionary.getKey()); | ||
| } | ||
| return null; | ||
| } | ||
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| private static String getAllNodeText(Node node) { | ||
| StringBuilder stringBuilder = new StringBuilder(); | ||
| NodeList childNodes = node.getChildNodes(); | ||
| for (int i = 0; i < childNodes.getLength(); i++) { | ||
| Node child = childNodes.item(i); | ||
| if (child.getNodeValue() != null) { | ||
| stringBuilder.append(child.getNodeValue()); | ||
| } else { | ||
| stringBuilder.append(getAllNodeText(child)); | ||
| } | ||
| } | ||
| return stringBuilder.toString(); | ||
| } | ||
| } |