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Diffstat (limited to 'mobile/android/thirdparty/ch/boye/httpclientandroidlib/entity/BufferedHttpEntity.java')
-rw-r--r-- | mobile/android/thirdparty/ch/boye/httpclientandroidlib/entity/BufferedHttpEntity.java | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/mobile/android/thirdparty/ch/boye/httpclientandroidlib/entity/BufferedHttpEntity.java b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/entity/BufferedHttpEntity.java new file mode 100644 index 000000000..6cb7495d7 --- /dev/null +++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/entity/BufferedHttpEntity.java @@ -0,0 +1,125 @@ +/* + * ==================================================================== + * 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 ch.boye.httpclientandroidlib.entity; + +import java.io.ByteArrayInputStream; +import java.io.IOException; +import java.io.InputStream; +import java.io.OutputStream; + +import ch.boye.httpclientandroidlib.HttpEntity; +import ch.boye.httpclientandroidlib.annotation.NotThreadSafe; +import ch.boye.httpclientandroidlib.util.Args; +import ch.boye.httpclientandroidlib.util.EntityUtils; + +/** + * A wrapping entity that buffers it content if necessary. + * The buffered entity is always repeatable. + * If the wrapped entity is repeatable itself, calls are passed through. + * If the wrapped entity is not repeatable, the content is read into a + * buffer once and provided from there as often as required. + * + * @since 4.0 + */ +@NotThreadSafe +public class BufferedHttpEntity extends HttpEntityWrapper { + + private final byte[] buffer; + + /** + * Creates a new buffered entity wrapper. + * + * @param entity the entity to wrap, not null + * @throws IllegalArgumentException if wrapped is null + */ + public BufferedHttpEntity(final HttpEntity entity) throws IOException { + super(entity); + if (!entity.isRepeatable() || entity.getContentLength() < 0) { + this.buffer = EntityUtils.toByteArray(entity); + } else { + this.buffer = null; + } + } + + @Override + public long getContentLength() { + if (this.buffer != null) { + return this.buffer.length; + } else { + return super.getContentLength(); + } + } + + @Override + public InputStream getContent() throws IOException { + if (this.buffer != null) { + return new ByteArrayInputStream(this.buffer); + } else { + return super.getContent(); + } + } + + /** + * Tells that this entity does not have to be chunked. + * + * @return <code>false</code> + */ + @Override + public boolean isChunked() { + return (buffer == null) && super.isChunked(); + } + + /** + * Tells that this entity is repeatable. + * + * @return <code>true</code> + */ + @Override + public boolean isRepeatable() { + return true; + } + + + @Override + public void writeTo(final OutputStream outstream) throws IOException { + Args.notNull(outstream, "Output stream"); + if (this.buffer != null) { + outstream.write(this.buffer); + } else { + super.writeTo(outstream); + } + } + + + // non-javadoc, see interface HttpEntity + @Override + public boolean isStreaming() { + return (buffer == null) && super.isStreaming(); + } + +} // class BufferedHttpEntity |