Java tutorial
/* * Copyright (c) 2000-2004 Netspective Communications LLC. All rights reserved. * * Netspective Communications LLC ("Netspective") permits redistribution, modification and use of this file in source * and binary form ("The Software") under the Netspective Source License ("NSL" or "The License"). The following * conditions are provided as a summary of the NSL but the NSL remains the canonical license and must be accepted * before using The Software. Any use of The Software indicates agreement with the NSL. * * 1. Each copy or derived work of The Software must preserve the copyright notice and this notice unmodified. * * 2. Redistribution of The Software is allowed in object code form only (as Java .class files or a .jar file * containing the .class files) and only as part of an application that uses The Software as part of its primary * functionality. No distribution of the package is allowed as part of a software development kit, other library, * or development tool without written consent of Netspective. Any modified form of The Software is bound by these * same restrictions. * * 3. Redistributions of The Software in any form must include an unmodified copy of The License, normally in a plain * ASCII text file unless otherwise agreed to, in writing, by Netspective. * * 4. The names "Netspective", "Axiom", "Commons", "Junxion", and "Sparx" are trademarks of Netspective and may not be * used to endorse or appear in products derived from The Software without written consent of Netspective. * * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT A WARRANTY OF ANY KIND. ALL EXPRESS OR IMPLIED REPRESENTATIONS AND * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, * ARE HEREBY DISCLAIMED. * * NETSPECTIVE AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE OR ANY THIRD PARTY AS A * RESULT OF USING OR DISTRIBUTING THE SOFTWARE. IN NO EVENT WILL NETSPECTIVE OR ITS LICENSORS BE LIABLE FOR ANY LOST * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER * CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THE SOFTWARE, EVEN * IF IT HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. */ package com.netspective.sparx.form.handler; import java.io.IOException; import java.io.Writer; import javax.servlet.ServletException; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import com.netspective.commons.value.ValueSource; import com.netspective.sparx.form.DialogContext; import com.netspective.sparx.form.DialogExecuteException; import com.netspective.sparx.util.HttpUtils; public class DialogExecuteIncludeResourceHandler extends DialogExecuteDefaultHandler { private static final Log log = LogFactory.getLog(DialogExecuteIncludeResourceHandler.class); public static final String REQATTRNAME_DIALOG_CONTEXT = "dialogContext"; private boolean local; private ValueSource path; public DialogExecuteIncludeResourceHandler() { } public ValueSource getPath() { return path; } public void setPath(ValueSource path) { this.path = path; setLocal(true); } public void setUrl(ValueSource url) { this.path = url; setLocal(false); } public boolean isLocal() { return local; } public void setLocal(boolean local) { this.local = local; } public void executeDialog(Writer writer, DialogContext dc) throws IOException, DialogExecuteException { if (path == null) { writer.write("No path to resource or URL provided."); return; } String includePath = getPath().getTextValue(dc); if (local) { try { HttpUtils.includeServletResourceContent(writer, dc, includePath, REQATTRNAME_DIALOG_CONTEXT); } catch (ServletException e) { log.error(e); throw new DialogExecuteException("Error including '" + includePath + "'", e); } } else HttpUtils.includeUrlContent(includePath, writer); } }