com.gargoylesoftware.htmlunit.DownloadedContent Maven / Gradle / Ivy
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A headless browser intended for use in testing web-based applications.
/*
* Copyright (c) 2002-2011 Gargoyle Software Inc.
*
* Licensed 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.
*/
package com.gargoylesoftware.htmlunit;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.Serializable;
import org.apache.commons.lang.ArrayUtils;
/**
* Wrapper for content downloaded from a remote server.
*
* @version $Revision: 6204 $
* @author Marc Guillemot
*/
public interface DownloadedContent extends Serializable {
/**
* Implementation keeping content in memory.
*/
static class InMemory implements DownloadedContent {
private final byte[] bytes_;
public InMemory(final byte[] byteArray) {
if (byteArray == null) {
bytes_ = ArrayUtils.EMPTY_BYTE_ARRAY;
}
else {
bytes_ = byteArray;
}
}
public InputStream getInputStream() {
return new ByteArrayInputStream(bytes_);
}
}
/**
* Implementation keeping content on the file system.
*/
static class OnFile implements DownloadedContent {
private final File file_;
public OnFile(final File file) {
file_ = file;
}
public InputStream getInputStream() throws FileNotFoundException {
return new FileInputStream(file_);
}
}
/**
* Returns a new {@link InputStream} allowing to read the downloaded content.
* @return the InputStream
* @throws IOException in case of problem accessing the content
*/
InputStream getInputStream() throws IOException;
}