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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
* a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [year]
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*
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* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
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* and therefore, elected the GPL Version 2 license, then the option applies
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*/
package com.sun.xml.ws.encoding;
import javax.activation.ActivationDataFlavor;
import javax.activation.DataSource;
import javax.activation.DataContentHandler;
import java.awt.datatransfer.DataFlavor;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.nio.charset.Charset;
/**
* JavaMail's data content handler for text/plain -->String
*/
public class StringDataContentHandler implements DataContentHandler {
private static final ActivationDataFlavor myDF = new ActivationDataFlavor(
java.lang.String.class, "text/plain", "Text String");
protected ActivationDataFlavor getDF() {
return myDF;
}
/**
* Return the DataFlavors for this DataContentHandler.
*
* @return The DataFlavors
*/
public DataFlavor[] getTransferDataFlavors() {
return new DataFlavor[]{getDF()};
}
/**
* Return the Transfer Data of type DataFlavor from InputStream.
*
* @param df The DataFlavor
* @param ds The DataSource corresponding to the data
* @return String object
*/
public Object getTransferData(DataFlavor df, DataSource ds)
throws IOException {
// use myDF.equals to be sure to get ActivationDataFlavor.equals,
// which properly ignores Content-Type parameters in comparison
if (getDF().equals(df))
return getContent(ds);
else
return null;
}
public Object getContent(DataSource ds) throws IOException {
String enc = null;
InputStreamReader is;
try {
enc = getCharset(ds.getContentType());
is = new InputStreamReader(ds.getInputStream(), enc);
} catch (IllegalArgumentException iex) {
/*
* An unknown charset of the form ISO-XXX-XXX will cause
* the JDK to throw an IllegalArgumentException. The
* JDK will attempt to create a classname using this string,
* but valid classnames must not contain the character '-',
* and this results in an IllegalArgumentException, rather than
* the expected UnsupportedEncodingException. Yikes.
*/
throw new UnsupportedEncodingException(enc);
}
try {
int pos = 0;
int count;
char buf[] = new char[1024];
while ((count = is.read(buf, pos, buf.length - pos)) != -1) {
pos += count;
if (pos >= buf.length) {
int size = buf.length;
if (size < 256 * 1024)
size += size;
else
size += 256 * 1024;
char tbuf[] = new char[size];
System.arraycopy(buf, 0, tbuf, 0, pos);
buf = tbuf;
}
}
return new String(buf, 0, pos);
} finally {
try {
is.close();
} catch (IOException ex) {
// not much can be done
}
}
}
/**
* Write the object to the output stream, using the specified MIME type.
*/
public void writeTo(Object obj, String type, OutputStream os)
throws IOException {
if (!(obj instanceof String))
throw new IOException("\"" + getDF().getMimeType() +
"\" DataContentHandler requires String object, " +
"was given object of type " + obj.getClass().toString());
String enc = null;
OutputStreamWriter osw;
try {
enc = getCharset(type);
osw = new OutputStreamWriter(os, enc);
} catch (IllegalArgumentException iex) {
/*
* An unknown charset of the form ISO-XXX-XXX will cause
* the JDK to throw an IllegalArgumentException. The
* JDK will attempt to create a classname using this string,
* but valid classnames must not contain the character '-',
* and this results in an IllegalArgumentException, rather than
* the expected UnsupportedEncodingException. Yikes.
*/
throw new UnsupportedEncodingException(enc);
}
String s = (String) obj;
osw.write(s, 0, s.length());
osw.flush();
}
private String getCharset(String type) {
try {
ContentType ct = new ContentType(type);
String charset = ct.getParameter("charset");
if (charset == null)
// If the charset parameter is absent, use US-ASCII.
charset = "us-ascii";
return Charset.forName(charset).name();
//return MimeUtility.javaCharset(charset);
} catch (Exception ex) {
return null;
}
}
}
