/*
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.http.entity;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.nio.charset.Charset;
import java.nio.charset.UnsupportedCharsetException;
import org.apache.http.annotation.NotThreadSafe;
import org.apache.http.protocol.HTTP;
import org.apache.http.util.Args;
/**
* A self contained, repeatable entity that obtains its content from
* a {@link String}.
*
* @since 4.0
*/
@NotThreadSafe
public class StringEntity extends AbstractHttpEntity implements Cloneable {
protected final byte[] content;
/**
* Creates a StringEntity with the specified content and content type.
*
* @param string content to be used. Not {@code null}.
* @param contentType content type to be used. May be {@code null}, in which case the default
* MIME type {@link ContentType#TEXT_PLAIN} is assumed.
*
* @throws IllegalArgumentException if the string parameter is null
* @throws UnsupportedCharsetException Thrown when the named charset is not available in
* this instance of the Java virtual machine
* @since 4.2
*/
public StringEntity(final String string, final ContentType contentType) throws UnsupportedCharsetException {
super();
Args.notNull(string, "Source string");
Charset charset = contentType != null ? contentType.getCharset() : null;
if (charset == null) {
charset = HTTP.DEF_CONTENT_CHARSET;
}
this.content = string.getBytes(charset);
if (contentType != null) {
setContentType(contentType.toString());
}
}
/**
* Creates a StringEntity with the specified content, MIME type and charset
*
* @param string content to be used. Not {@code null}.
* @param mimeType MIME type to be used. May be {@code null}, in which case the default
* is {@link HTTP#PLAIN_TEXT_TYPE} i.e. "text/plain"
* @param charset character set to be used. May be {@code null}, in which case the default
* is {@link HTTP#DEF_CONTENT_CHARSET} i.e. "ISO-8859-1"
* @throws UnsupportedEncodingException If the named charset is not supported.
*
* @since 4.1
* @throws IllegalArgumentException if the string parameter is null
*
* @deprecated (4.1.3) use {@link #StringEntity(String, ContentType)}
*/
@Deprecated
public StringEntity(
final String string, final String mimeType, final String charset) throws UnsupportedEncodingException {
super();
Args.notNull(string, "Source string");
final String mt = mimeType != null ? mimeType : HTTP.PLAIN_TEXT_TYPE;
final String cs = charset != null ? charset :HTTP.DEFAULT_CONTENT_CHARSET;
this.content = string.getBytes(cs);
setContentType(mt + HTTP.CHARSET_PARAM + cs);
}
/**
* Creates a StringEntity with the specified content and charset. The MIME type defaults
* to "text/plain".
*
* @param string content to be used. Not {@code null}.
* @param charset character set to be used. May be {@code null}, in which case the default
* is {@link HTTP#DEF_CONTENT_CHARSET} is assumed
*
* @throws IllegalArgumentException if the string parameter is null
* @throws UnsupportedCharsetException Thrown when the named charset is not available in
* this instance of the Java virtual machine
*/
public StringEntity(final String string, final String charset)
throws UnsupportedCharsetException {
this(string, ContentType.create(ContentType.TEXT_PLAIN.getMimeType(), charset));
}
/**
* Creates a StringEntity with the specified content and charset. The MIME type defaults
* to "text/plain".
*
* @param string content to be used. Not {@code null}.
* @param charset character set to be used. May be {@code null}, in which case the default
* is {@link HTTP#DEF_CONTENT_CHARSET} is assumed
*
* @throws IllegalArgumentException if the string parameter is null
*
* @since 4.2
*/
public StringEntity(final String string, final Charset charset) {
this(string, ContentType.create(ContentType.TEXT_PLAIN.getMimeType(), charset));
}
/**
* Creates a StringEntity with the specified content. The content type defaults to
* {@link ContentType#TEXT_PLAIN}.
*
* @param string content to be used. Not {@code null}.
*
* @throws IllegalArgumentException if the string parameter is null
* @throws UnsupportedEncodingException if the default HTTP charset is not supported.
*/
public StringEntity(final String string)
throws UnsupportedEncodingException {
this(string, ContentType.DEFAULT_TEXT);
}
@Override
public boolean isRepeatable() {
return true;
}
@Override
public long getContentLength() {
return this.content.length;
}
@Override
public InputStream getContent() throws IOException {
return new ByteArrayInputStream(this.content);
}
@Override
public void writeTo(final OutputStream outstream) throws IOException {
Args.notNull(outstream, "Output stream");
outstream.write(this.content);
outstream.flush();
}
/**
* Tells that this entity is not streaming.
*
* @return {@code false}
*/
@Override
public boolean isStreaming() {
return false;
}
@Override
public Object clone() throws CloneNotSupportedException {
return super.clone();
}
} // class StringEntity