uploadimagefilter.java

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/*
 * Copyright 2003-2006 the original author or authors.
 * 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.jdon.jivejdon.model.message.upload;

import java.util.Collection;
import java.util.Iterator;

import com.jdon.jivejdon.model.UploadFile;
import com.jdon.jivejdon.model.message.MessageRenderSpecification;
import com.jdon.jivejdon.model.message.MessageVO;

/**
 * @author banq(http://www.jdon.com)
 *
 */
public class UploadImageFilter implements MessageRenderSpecification {
	private String imageShowUrl = "../imageShow.jsp";
	private String imageShowInHtmlUrl = "../imageShowInHtml.jsp";

	public String getImageShowFileName() {
		return imageShowUrl;
	}

	public void setImageShowFileName(String imageShowFileName) {
		imageShowUrl = imageShowFileName;
	}

	public MessageVO render(MessageVO message) {
		String newBody = appendTags(message);
		message.setBody(newBody);
		return message;
	}

	/**
	 * return the String:
	 * 
	 * [img]/imageShow.jsp?id=3464[/img]
	 *
	 * @param str
	 * @return
	 */
	public String appendTags(MessageVO message) {
		String str = message.getBody();
		Collection uploadFiles = message.getEntityMessage().getUploadFiles();
		if ((uploadFiles == null) || (uploadFiles.size() == 0)) {
			return str;
		}
		UploadHelper uploadHelper = new UploadHelper();
		StringBuffer sb = new StringBuffer(str);
		sb.append("\n");
		Iterator iter = uploadFiles.iterator();
		while (iter.hasNext()) {
			UploadFile uploadFile = (UploadFile) iter.next();
			if (uploadHelper.isImage(uploadFile.getName())) {
				append(sb, uploadFile);
			}
		}
		return sb.toString();
	}

	//see com.jdon.jivejdon.presentation.action.UploadShowAction
	private void append(StringBuffer sb, UploadFile uploadFile) {
		sb.append("<p>").append(uploadFile.getDescription());
		sb.append("<br><a href='").append(imageShowInHtmlUrl).append("?id=").append(uploadFile.getId());
		sb.append("&oid=").append(uploadFile.getOid());
		sb.append("' target=_blank>");
		sb.append("<img src=\"");
		sb.append(imageShowUrl);
		sb.append("?id=").append(uploadFile.getId());
		sb.append("&oid=").append(uploadFile.getOid());
		sb.append("\" border='0' >");
		sb.append("</a></p>\n");
	}

	public String getImageShowUrl() {
		return imageShowUrl;
	}

	public void setImageShowUrl(String imageShowUrl) {
		this.imageShowUrl = imageShowUrl;
	}

	public String getImageShowInHtmlUrl() {
		return imageShowInHtmlUrl;
	}

	public void setImageShowInHtmlUrl(String imageShowInHtmlUrl) {
		this.imageShowInHtmlUrl = imageShowInHtmlUrl;
	}

}