org.apache.xmlgraphics.image.loader.ImageSource Maven / Gradle / Ivy
/*
* 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.
*/
/* $Id: ImageSource.java 750418 2009-03-05 11:03:54Z vhennebert $ */
package org.apache.xmlgraphics.image.loader;
import java.io.InputStream;
import javax.imageio.stream.ImageInputStream;
import javax.xml.transform.Source;
import org.apache.xmlgraphics.image.loader.util.ImageInputStreamAdapter;
/**
* Acts as a holder for the input to image loading operations.
*/
public class ImageSource implements Source {
private String systemId;
private ImageInputStream iin;
private boolean fastSource;
/**
* Main constructor.
* @param in the ImageInputStream to load from
* @param systemId the system identifier (resolved URI) of the image
* @param fastSource true if it's a fast source (accessing local files)
*/
public ImageSource(ImageInputStream in, String systemId, boolean fastSource) {
assert in != null : "InputStream is null";
this.iin = in;
this.systemId = systemId;
this.fastSource = fastSource;
}
/**
* Returns an InputStream which operates on the underlying ImageInputStream.
* @return the InputStream or null if the stream has been closed
*/
public InputStream getInputStream() {
if (this.iin == null) {
return null;
} else {
return new ImageInputStreamAdapter(this.iin);
}
}
/**
* Returns the ImageInputStream.
* @return the ImageInputStream or null if the stream has been closed
*/
public ImageInputStream getImageInputStream() {
return this.iin;
}
/**
* Sets the ImageInputStream.
* @param in the ImageInputStream
*/
public void setImageInputStream(ImageInputStream in) {
this.iin = in;
}
/** {@inheritDoc} */
public String getSystemId() {
return this.systemId;
}
/** {@inheritDoc} */
public void setSystemId(String systemId) {
this.systemId = systemId;
}
/**
* Indicates whether this ImageSource is a fast source, i.e. accesses local files rather than
* network resources.
* @return true if it's a fast source
*/
public boolean isFastSource() {
return this.fastSource;
}
/** {@inheritDoc} */
public String toString() {
return (isFastSource() ? "FAST " : "") + "ImageSource: "
+ getSystemId() + " " + getImageInputStream();
}
}