Java tutorial
/* * Copyright 2001-2004 The Apache Software Foundation. * * 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 org.apache.axis.attachments; import org.apache.axis.components.image.ImageIOFactory; import org.apache.axis.components.logger.LogFactory; import org.apache.axis.utils.Messages; import org.apache.commons.logging.Log; import javax.activation.DataSource; import java.awt.*; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; public class ImageDataSource implements DataSource { protected static Log log = LogFactory.getLog(ImageDataSource.class.getName()); public static final String CONTENT_TYPE = "image/jpeg"; private final String name; private final String contentType; private byte[] data; private ByteArrayOutputStream os; public ImageDataSource(String name, Image data) { this(name, CONTENT_TYPE, data); } // ctor public ImageDataSource(String name, String contentType, Image data) { this.name = name; this.contentType = contentType == null ? CONTENT_TYPE : contentType; os = new ByteArrayOutputStream(); try { if (data != null) { ImageIOFactory.getImageIO().saveImage(this.contentType, data, os); } } catch (Exception e) { log.error(Messages.getMessage("exception00"), e); } } // ctor public String getName() { return name; } // getName public String getContentType() { return contentType; } // getContentType public InputStream getInputStream() throws IOException { if (os.size() != 0) { data = os.toByteArray(); os.reset(); } return new ByteArrayInputStream(data == null ? new byte[0] : data); } // getInputStream public OutputStream getOutputStream() throws IOException { if (os.size() != 0) { data = os.toByteArray(); os.reset(); } return os; } // getOutputStream } // class ImageDataSource