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authornetconomy <netconomy@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c>2007-08-17 06:10:56 +0000
committernetconomy <netconomy@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c>2007-08-17 06:10:56 +0000
commit3d982813b34f6f230baf4a467cdc37ec92a77595 (patch)
tree85319d39cee2ded1bb7a2b2dd9e8ea37e3778248 /src/main/java/at/gv/egiz/pdfas/impl/input/FileBasedTextDataSourceImpl.java
parent07f6c8f33b2d700276fe6ec6339ff836c8710131 (diff)
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Performance
git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@167 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c
Diffstat (limited to 'src/main/java/at/gv/egiz/pdfas/impl/input/FileBasedTextDataSourceImpl.java')
-rw-r--r--src/main/java/at/gv/egiz/pdfas/impl/input/FileBasedTextDataSourceImpl.java124
1 files changed, 124 insertions, 0 deletions
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/input/FileBasedTextDataSourceImpl.java b/src/main/java/at/gv/egiz/pdfas/impl/input/FileBasedTextDataSourceImpl.java
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index 0000000..6f6c7b4
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+++ b/src/main/java/at/gv/egiz/pdfas/impl/input/FileBasedTextDataSourceImpl.java
@@ -0,0 +1,124 @@
+/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.input;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import at.gv.egiz.pdfas.framework.input.TextDataSource;
+
+/**
+ * @author wprinz
+ *
+ */
+public class FileBasedTextDataSourceImpl implements TextDataSource, FileBased
+{
+ /**
+ * The log.
+ */
+ private static final Log log = LogFactory.getLog(FileBasedTextDataSourceImpl.class);
+
+ protected File file = null;
+
+ protected String characterEncoding = null;
+
+ public FileBasedTextDataSourceImpl(File file, String characterEncoding) throws IOException
+ {
+ if (!file.exists())
+ {
+ throw new FileNotFoundException("The file '" + file + "' does not exist.");
+ }
+ if (!file.canRead())
+ {
+ throw new IOException("The file '" + file + "' cannot be read.");
+ }
+
+ this.file = file;
+ this.characterEncoding = characterEncoding;
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.impl.input.FileBased#getFile()
+ */
+ public File getFile()
+ {
+ return this.file;
+ }
+
+ /**
+ * Returns the character encoding.
+ *
+ * @return Returns the character encoding.
+ */
+ public String getCharacterEncoding()
+ {
+ return this.characterEncoding;
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.input.TextDataSource#getText()
+ */
+ public String getText()
+ {
+ try
+ {
+ InputStream is = createInputStream();
+ byte[] data = new byte[getLength()];
+ int read = 0;
+ int n = 0;
+ while ((n = is.read(data, read, data.length - read)) > 0)
+ {
+ read += n;
+ }
+ is.close();
+
+ String text = new String(data, getCharacterEncoding());
+
+ data = null;
+
+ return text;
+ }
+ catch (IOException e)
+ {
+ log.error("Couldn't read text for file " + getFile() + ". Returning null.");
+ log.error(e);
+
+ return null;
+ }
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.input.DataSource#createInputStream()
+ */
+ public InputStream createInputStream()
+ {
+ try
+ {
+ FileInputStream fis = new FileInputStream(getFile());
+ return fis;
+ }
+ catch (IOException e)
+ {
+ log.error("Couldn't create InputStream for file " + getFile() + ". Returning null.");
+ log.error(e);
+
+ return null;
+ }
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.input.DataSource#getLength()
+ */
+ public int getLength()
+ {
+ return (int) getFile().length();
+ }
+
+}