1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/mobile/android/base/background/bagheera/BoundedByteArrayEntity.java Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,88 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +package org.mozilla.gecko.background.bagheera;
1.9 +
1.10 +import java.io.ByteArrayInputStream;
1.11 +import java.io.IOException;
1.12 +import java.io.InputStream;
1.13 +import java.io.OutputStream;
1.14 +
1.15 +import ch.boye.httpclientandroidlib.entity.AbstractHttpEntity;
1.16 +import ch.boye.httpclientandroidlib.entity.ByteArrayEntity;
1.17 +
1.18 +/**
1.19 + * An entity that acts like {@link ByteArrayEntity}, but exposes a window onto
1.20 + * the byte array that is a subsection of the array. The purpose of this is to
1.21 + * allow a smaller entity to be created without having to resize the source
1.22 + * array.
1.23 + */
1.24 +public class BoundedByteArrayEntity extends AbstractHttpEntity implements
1.25 + Cloneable {
1.26 + protected final byte[] content;
1.27 + protected final int start;
1.28 + protected final int end;
1.29 + protected final int length;
1.30 +
1.31 + /**
1.32 + * Create a new entity that behaves exactly like a {@link ByteArrayEntity}
1.33 + * created with a copy of <code>b</code> truncated to (
1.34 + * <code>end - start</code>) bytes, starting at <code>start</code>.
1.35 + *
1.36 + * @param b the byte array to use.
1.37 + * @param start the start index.
1.38 + * @param end the end index.
1.39 + */
1.40 + public BoundedByteArrayEntity(final byte[] b, final int start, final int end) {
1.41 + if (b == null) {
1.42 + throw new IllegalArgumentException("Source byte array may not be null.");
1.43 + }
1.44 +
1.45 + if (end < start ||
1.46 + start < 0 ||
1.47 + end < 0 ||
1.48 + start > b.length ||
1.49 + end > b.length) {
1.50 + throw new IllegalArgumentException("Bounds out of range.");
1.51 + }
1.52 + this.content = b;
1.53 + this.start = start;
1.54 + this.end = end;
1.55 + this.length = end - start;
1.56 + }
1.57 +
1.58 + @Override
1.59 + public boolean isRepeatable() {
1.60 + return true;
1.61 + }
1.62 +
1.63 + @Override
1.64 + public long getContentLength() {
1.65 + return this.length;
1.66 + }
1.67 +
1.68 + @Override
1.69 + public InputStream getContent() {
1.70 + return new ByteArrayInputStream(this.content, this.start, this.length);
1.71 + }
1.72 +
1.73 + @Override
1.74 + public void writeTo(final OutputStream outstream) throws IOException {
1.75 + if (outstream == null) {
1.76 + throw new IllegalArgumentException("Output stream may not be null.");
1.77 + }
1.78 + outstream.write(this.content);
1.79 + outstream.flush();
1.80 + }
1.81 +
1.82 + @Override
1.83 + public boolean isStreaming() {
1.84 + return false;
1.85 + }
1.86 +
1.87 + @Override
1.88 + public Object clone() throws CloneNotSupportedException {
1.89 + return super.clone();
1.90 + }
1.91 +}
1.92 \ No newline at end of file
