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author | tknall <tknall@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c> | 2013-01-09 15:41:29 +0000 |
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committer | tknall <tknall@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c> | 2013-01-09 15:41:29 +0000 |
commit | 535a04fa05f739ec16dd81666e3b0f82dfbd442d (patch) | |
tree | 0804f301c1a9ceb303a8441b7b29244fc8eb7ff0 /src/main/java/at/gv/egiz/pdfas/placeholder | |
parent | 1efaf6fd5619dfa95c9d7e8c71eda4c2ffba4998 (diff) | |
download | pdf-as-3-535a04fa05f739ec16dd81666e3b0f82dfbd442d.tar.gz pdf-as-3-535a04fa05f739ec16dd81666e3b0f82dfbd442d.tar.bz2 pdf-as-3-535a04fa05f739ec16dd81666e3b0f82dfbd442d.zip |
pdf-as-lib maven project files moved to pdf-as-lib
git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/pdf-as/trunk@926 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c
Diffstat (limited to 'src/main/java/at/gv/egiz/pdfas/placeholder')
3 files changed, 0 insertions, 574 deletions
diff --git a/src/main/java/at/gv/egiz/pdfas/placeholder/SignaturePlaceholderContext.java b/src/main/java/at/gv/egiz/pdfas/placeholder/SignaturePlaceholderContext.java deleted file mode 100644 index 0636304..0000000 --- a/src/main/java/at/gv/egiz/pdfas/placeholder/SignaturePlaceholderContext.java +++ /dev/null @@ -1,72 +0,0 @@ -/**
- * <copyright> Copyright 2006 by Know-Center, Graz, Austria </copyright>
- * PDF-AS has been contracted by the E-Government Innovation Center EGIZ, a
- * joint initiative of the Federal Chancellery Austria and Graz University of
- * Technology.
- *
- * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
- * the European Commission - subsequent versions of the EUPL (the "Licence");
- * You may not use this work except in compliance with the Licence.
- * You may obtain a copy of the Licence at:
- * http://www.osor.eu/eupl/
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the Licence is distributed on an "AS IS" basis,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the Licence for the specific language governing permissions and
- * limitations under the Licence.
- *
- * This product combines work with different licenses. See the "NOTICE" text
- * file for details on the various modules and licenses.
- * The "NOTICE" text file is part of the distribution. Any derivative works
- * that you distribute must include a readable copy of the "NOTICE" text file.
- */
-package at.gv.egiz.pdfas.placeholder;
-
-/**
- * Store and retrieve {@link SignaturePlaceholderData} in/from a thread local context.
- *
- * @author exthex
- *
- */
-public class SignaturePlaceholderContext {
-
- private ThreadLocal sigHolder = new ThreadLocal();
-
- private static SignaturePlaceholderContext instance = new SignaturePlaceholderContext();
-
- /**
- * Constructor. Private because this is a singleton.
- */
- private SignaturePlaceholderContext() {
-
- }
-
- /**
- * Get the {@link SignaturePlaceholderData} which is currently bound to this thread.
- * Might be null.
- *
- * @return
- */
- public static SignaturePlaceholderData getSignaturePlaceholderData(){
- return (SignaturePlaceholderData)instance.sigHolder.get();
- }
-
- /**
- *
- * @return true if there is currently a {@link SignaturePlaceholderData} bound to this thread, false otherwise.
- */
- public static boolean isSignaturePlaceholderDataSet() {
- return instance.sigHolder.get() != null;
- }
-
- /**
- * Bind a {@link SignaturePlaceholderData} to this thread.
- * If the given data is null, the context will be cleared.
- *
- * @param data if null, clears the ThreadLocal, else binds the data to the current thread.
- */
- public static void setSignaturePlaceholderData(SignaturePlaceholderData data) {
- instance.sigHolder.set(data);
- }
-}
diff --git a/src/main/java/at/gv/egiz/pdfas/placeholder/SignaturePlaceholderData.java b/src/main/java/at/gv/egiz/pdfas/placeholder/SignaturePlaceholderData.java deleted file mode 100644 index ec42d75..0000000 --- a/src/main/java/at/gv/egiz/pdfas/placeholder/SignaturePlaceholderData.java +++ /dev/null @@ -1,152 +0,0 @@ -/**
- * <copyright> Copyright 2006 by Know-Center, Graz, Austria </copyright>
- * PDF-AS has been contracted by the E-Government Innovation Center EGIZ, a
- * joint initiative of the Federal Chancellery Austria and Graz University of
- * Technology.
- *
- * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
- * the European Commission - subsequent versions of the EUPL (the "Licence");
- * You may not use this work except in compliance with the Licence.
- * You may obtain a copy of the Licence at:
- * http://www.osor.eu/eupl/
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the Licence is distributed on an "AS IS" basis,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the Licence for the specific language governing permissions and
- * limitations under the Licence.
- *
- * This product combines work with different licenses. See the "NOTICE" text
- * file for details on the various modules and licenses.
- * The "NOTICE" text file is part of the distribution. Any derivative works
- * that you distribute must include a readable copy of the "NOTICE" text file.
- */
-package at.gv.egiz.pdfas.placeholder;
-
-import at.knowcenter.wag.egov.egiz.pdf.TablePos;
-
-/**
- * This class represents all the data which can be extracted from a placeholder image.
- *
- * @author exthex
- *
- */
-public class SignaturePlaceholderData {
-
- public static final String ID_KEY = "id";
-
- public static final String PROFILE_KEY = "profile";
-
- public static final String TYPE_KEY = "type";
-
- public static final String SIG_KEY_KEY = "key";
-
- private String profile;
-
- private String type;
-
- private String key;
-
- private String id;
-
- private TablePos tablePos;
-
- private String placeholderName;
-
- /**
- *
- * @param profile
- * @param type
- * @param sigKey
- * @param id
- */
- public SignaturePlaceholderData(String profile, String type, String sigKey, String id) {
- this.profile = profile;
- this.type = type;
- this.key = sigKey;
- this.id = id;
- }
-
- /**
- * Get the table position for the signature block.<br/>
- * The table position is created from the page number, the upper left corner and the width of the placeholder image.
- *
- * @return
- */
- public TablePos getTablePos() {
- return tablePos;
- }
-
- void setTablePos(TablePos tablePos) {
- this.tablePos = tablePos;
- }
-
- /**
- * The profile name. Might be null if not included in the qr-code.
- *
- * @return
- */
- public String getProfile() {
- return profile;
- }
-
- void setProfile(String profile) {
- this.profile = profile;
- }
-
- /**
- * The signature type: "textual" or "binary". Might be null if not included in the qr-code.
- * @return
- */
- public String getType() {
- return type;
- }
-
- void setType(String type) {
- this.type = type;
- }
-
- /**
- * The key identifier for MOA signature. Might be null if not included in the qr-code.
- *
- * @return
- */
- public String getKey() {
- return key;
- }
-
- void setKey(String key) {
- this.key = key;
- }
-
- public String toString() {
- return getClass().toString() + ": profile=" + profile + "; type=" + type + "; sigKey=" + key + "; table pos=" + tablePos;
- }
-
- void setPlaceholderName(String name) {
- this.placeholderName = name;
- }
-
- /**
- * The name of the placeholder image.
- *
- * @return
- */
- public String getPlaceholderName() {
- return placeholderName;
- }
-
- /**
- * The id associated with this placeholder.
- *
- * @return
- */
- public String getId() {
- return id;
- }
-
- void setId(String id) {
- this.id = id;
- }
-
-}
diff --git a/src/main/java/at/gv/egiz/pdfas/placeholder/SignaturePlaceholderExtractor.java b/src/main/java/at/gv/egiz/pdfas/placeholder/SignaturePlaceholderExtractor.java deleted file mode 100644 index 8abe516..0000000 --- a/src/main/java/at/gv/egiz/pdfas/placeholder/SignaturePlaceholderExtractor.java +++ /dev/null @@ -1,350 +0,0 @@ -/**
- * <copyright> Copyright 2006 by Know-Center, Graz, Austria </copyright>
- * PDF-AS has been contracted by the E-Government Innovation Center EGIZ, a
- * joint initiative of the Federal Chancellery Austria and Graz University of
- * Technology.
- *
- * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
- * the European Commission - subsequent versions of the EUPL (the "Licence");
- * You may not use this work except in compliance with the Licence.
- * You may obtain a copy of the Licence at:
- * http://www.osor.eu/eupl/
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the Licence is distributed on an "AS IS" basis,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the Licence for the specific language governing permissions and
- * limitations under the Licence.
- *
- * This product combines work with different licenses. See the "NOTICE" text
- * file for details on the various modules and licenses.
- * The "NOTICE" text file is part of the distribution. Any derivative works
- * that you distribute must include a readable copy of the "NOTICE" text file.
- */
-package at.gv.egiz.pdfas.placeholder;
-
-import java.awt.geom.AffineTransform;
-import java.awt.geom.NoninvertibleTransformException;
-import java.awt.image.BufferedImage;
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.Hashtable;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-import java.util.Vector;
-
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.apache.pdfbox.cos.COSName;
-import org.apache.pdfbox.exceptions.WrappedIOException;
-import org.apache.pdfbox.pdmodel.PDDocument;
-import org.apache.pdfbox.pdmodel.PDPage;
-import org.apache.pdfbox.pdmodel.graphics.xobject.PDXObject;
-import org.apache.pdfbox.pdmodel.graphics.xobject.PDXObjectImage;
-import org.apache.pdfbox.util.Matrix;
-import org.apache.pdfbox.util.PDFOperator;
-import org.apache.pdfbox.util.PDFStreamEngine;
-import org.apache.pdfbox.util.ResourceLoader;
-
-import at.gv.egiz.pdfas.api.commons.Constants;
-import at.gv.egiz.pdfas.exceptions.ErrorCode;
-import at.gv.egiz.pdfas.exceptions.framework.PlaceholderExtractionException;
-import at.gv.egiz.pdfas.utils.PDFASUtils;
-import at.knowcenter.wag.egov.egiz.exceptions.PDFDocumentException;
-import at.knowcenter.wag.egov.egiz.pdf.TablePos;
-
-import com.google.zxing.BarcodeFormat;
-import com.google.zxing.BinaryBitmap;
-import com.google.zxing.DecodeHintType;
-import com.google.zxing.LuminanceSource;
-import com.google.zxing.MultiFormatReader;
-import com.google.zxing.NotFoundException;
-import com.google.zxing.ReaderException;
-import com.google.zxing.Result;
-import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
-import com.google.zxing.common.HybridBinarizer;
-
-//////
-
-
-
-/**
- * Extract all relevant information from a placeholder image.
- *
- * @author exthex
- *
- */
-public class SignaturePlaceholderExtractor extends PDFStreamEngine {
- /**
- * The log.
- */
- private static Log log = LogFactory.getLog(SignaturePlaceholderExtractor.class);
-
- private List placeholders = new Vector();
- private int currentPage = 0;
-
- private SignaturePlaceholderExtractor(String placeholderId, int placeholderMatchMode) throws IOException {
- super(ResourceLoader.loadProperties("at/gv/egiz/pdfas/placeholder/pdfbox-reader.properties",
- true));
- }
-
- /**
- * Search the document for placeholder images and possibly included
- * additional info.<br/>
- * Searches only for the first placeholder page after page from top.
- *
- * @param inputStream
- * @return all available info from the first found placeholder.
- * @throws PDFDocumentException if the document could not be read.
- * @throws PlaceholderExtractionException if STRICT matching mode was requested and no suitable placeholder could be found.
- */
- public static SignaturePlaceholderData extract(InputStream inputStream, String placeholderId, int matchMode)
- throws PDFDocumentException, PlaceholderExtractionException {
- SignaturePlaceholderContext.setSignaturePlaceholderData(null);
- PDDocument doc = null;
- try
- {
- try {
- doc = PDDocument.load(inputStream);
- } catch (IOException e) {
- throw new PDFDocumentException(ErrorCode.DOCUMENT_CANNOT_BE_READ, e);
- }
- PDFASUtils.checkDocumentPermissions(doc);
- SignaturePlaceholderExtractor extractor;
- try
- {
- extractor = new SignaturePlaceholderExtractor(placeholderId, matchMode);
- } catch (IOException e2) {
- throw new PDFDocumentException(ErrorCode.DOCUMENT_CANNOT_BE_READ, e2);
- }
- List pages = doc.getDocumentCatalog().getAllPages();
- Iterator iter = pages.iterator();
- int pageNr = 0;
- while (iter.hasNext()) {
- pageNr++;
- PDPage page = (PDPage) iter.next();
- try {
- extractor.setCurrentPage(pageNr);
- extractor.processStream( page, page.findResources(), page.getContents().getStream() );
- SignaturePlaceholderData ret = matchPlaceholderPage(extractor.placeholders, placeholderId, matchMode);
- if (ret != null){
- SignaturePlaceholderContext.setSignaturePlaceholderData(ret);
- return ret;
- }
- } catch (IOException e1) {
- throw new PDFDocumentException(ErrorCode.DOCUMENT_CANNOT_BE_READ, e1);
- }
-
- }
- if (extractor.placeholders.size() > 0){
- SignaturePlaceholderData ret = matchPlaceholderDocument(extractor.placeholders, placeholderId, matchMode);
- SignaturePlaceholderContext.setSignaturePlaceholderData(ret);
- return ret;
- }
- // no placeholders found, apply strict mode if set
- if (matchMode == Constants.PLACEHOLDER_MATCH_MODE_STRICT) {
- throw new PlaceholderExtractionException(ErrorCode.SIGNATURE_PLACEHOLDER_EXTRACTION_FAILED, "no suitable placeholder found and STRICT matching mode requested.");
- }
-
- return null;
- } finally {
- if (doc != null)
- try {
- doc.close();
- } catch (IOException e) {
- log.debug("Could not close document.", e);
- }
- }
-
- }
-
- private static SignaturePlaceholderData matchPlaceholderDocument(
- List placeholders, String placeholderId, int matchMode) throws PlaceholderExtractionException {
-
- if (matchMode == Constants.PLACEHOLDER_MATCH_MODE_STRICT)
- throw new PlaceholderExtractionException(ErrorCode.SIGNATURE_PLACEHOLDER_EXTRACTION_FAILED, "no suitable placeholder found and STRICT matching mode requested.");
-
- if (placeholders.size() == 0)
- return null;
-
- for (int i = 0; i < placeholders.size(); i++)
- {
- SignaturePlaceholderData spd = (SignaturePlaceholderData)placeholders.get(i);
- if (spd.getId() == null)
- return spd;
- }
-
- if (matchMode == Constants.PLACEHOLDER_MATCH_MODE_LENIENT)
- return (SignaturePlaceholderData)placeholders.get(0);
-
- return null;
- }
-
- private static SignaturePlaceholderData matchPlaceholderPage(List placeholders,
- String placeholderId, int matchMode) {
- if (placeholders.size() == 0)
- return null;
- for (int i = 0; i < placeholders.size(); i++)
- {
- SignaturePlaceholderData data = (SignaturePlaceholderData)placeholders.get(i);
- if (placeholderId != null && placeholderId.equals(data.getId()))
- return data;
- if (placeholderId == null && data.getId() == null)
- return data;
- }
- return null;
- }
-
- private void setCurrentPage(int pageNr) {
- this.currentPage = pageNr;
- }
-
- protected void processOperator( PDFOperator operator, List arguments ) throws IOException
- {
- String operation = operator.getOperation();
- if( operation.equals( "Do" ) )
- {
- COSName objectName = (COSName)arguments.get( 0 );
- Map xobjects = getResources().getXObjects();
- PDXObject xobject = (PDXObject)xobjects.get( objectName.getName() );
- if( xobject instanceof PDXObjectImage )
- {
- try
- {
- PDXObjectImage image = (PDXObjectImage)xobject;
- SignaturePlaceholderData data = checkImage(image);
- if (data != null)
- {
- PDPage page = getCurrentPage();
- Matrix ctm = getGraphicsState().getCurrentTransformationMatrix();
- double rotationInRadians = (page.findRotation() * Math.PI)/180;
-
- AffineTransform rotation = new AffineTransform();
- rotation.setToRotation( rotationInRadians );
- AffineTransform rotationInverse = rotation.createInverse();
- Matrix rotationInverseMatrix = new Matrix();
- rotationInverseMatrix.setFromAffineTransform( rotationInverse );
- Matrix rotationMatrix = new Matrix();
- rotationMatrix.setFromAffineTransform( rotation );
-
- Matrix unrotatedCTM = ctm.multiply( rotationInverseMatrix );
-
- float x = unrotatedCTM.getXPosition();
- float y = unrotatedCTM.getYPosition() + unrotatedCTM.getYScale();
- float w = unrotatedCTM.getXScale();
-
- String posString = "p:" + currentPage + ";x:" + x + ";y:" + y + ";w:" + w;
- try
- {
- data.setTablePos(new TablePos(posString));
- data.setPlaceholderName(objectName.getName());
- placeholders.add(data);
- } catch (PDFDocumentException e) {
- throw new WrappedIOException(e);
- }
- }
- }
- catch( NoninvertibleTransformException e )
- {
- throw new WrappedIOException( e );
- }
- }
- }
- else
- {
- super.processOperator( operator, arguments );
- }
- }
-
- /**
- * Checks an image if it is a placeholder for a signature.
- *
- * @param image
- * @return
- * @throws IOException
- */
- private SignaturePlaceholderData checkImage(PDXObjectImage image) throws IOException {
- BufferedImage bimg = image.getRGBImage();
- if (bimg == null) {
- String type = image.getSuffix();
- if (type != null) {
- type = type.toUpperCase() + " images";
- } else {
- type = "Image type";
- }
- log.info("Unable to extract image for QRCode analysis. " + type + " not supported. Add additional JAI Image filters to your classpath. Refer to https://jai.dev.java.net. Skipping image.");
- return null;
- }
- if(bimg.getHeight() < 10 || bimg.getWidth() < 10) {
- log.debug("Image too small for QRCode. Skipping image.");
- return null;
- }
-
- LuminanceSource source = new BufferedImageLuminanceSource(bimg);
- BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
- Result result;
- long before = System.currentTimeMillis();
- try {
- Hashtable hints = new Hashtable();
- Vector formats = new Vector();
- formats.add(BarcodeFormat.QR_CODE);
- hints.put(DecodeHintType.POSSIBLE_FORMATS, formats);
- result = new MultiFormatReader().decode(bitmap, hints);
-
- String text = result.getText();
- String profile = null;
- String type = null;
- String sigKey = null;
- String id = null;
- if (text != null) {
- if (text.startsWith(Constants.QR_PLACEHOLDER_IDENTIFIER)) {
- String[] data = text.split(";");
- if (data.length > 1) {
- for (int i = 1; i < data.length; i++) {
- String kvPair = data[i];
- String[] kv = kvPair.split("=");
- if (kv.length != 2) {
- log.debug("Invalid parameter in placeholder data: " + kvPair);
- } else {
- if (kv[0].equalsIgnoreCase(SignaturePlaceholderData.ID_KEY)) {
- id = kv[1];
- } else if (kv[0].equalsIgnoreCase(SignaturePlaceholderData.PROFILE_KEY)) {
- profile = kv[1];
- } else if (kv[0]
- .equalsIgnoreCase(SignaturePlaceholderData.SIG_KEY_KEY)) {
- sigKey = kv[1];
- } else if (kv[0]
- .equalsIgnoreCase(SignaturePlaceholderData.TYPE_KEY)) {
- type = kv[1];
- }
- }
- }
- }
- return new SignaturePlaceholderData(profile, type, sigKey, id);
- } else {
- log.warn("QR-Code found but does not start with \"" + Constants.QR_PLACEHOLDER_IDENTIFIER + "\". Ignoring QR placeholder.");
- }
- }
- } catch (ReaderException re) {
- re.printStackTrace();
- if (log.isDebugEnabled()) {
- log.debug("Could not decode - not a placeholder. needed: "
- + (System.currentTimeMillis() - before));
- }
- if (!(re instanceof NotFoundException)){
- if (log.isInfoEnabled()) {
- log.info("Failed to decode image", re);
- }
- }
- } catch(ArrayIndexOutOfBoundsException e){
- if (log.isInfoEnabled()) {
- log.info("Failed to decode image. Probably a zxing bug", e);
- }
- }
- return null;
- }
-
-}
-
-
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