| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2001-2002 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, if |
| * any, must include the following acknowlegement: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowlegement may appear in the software itself, |
| * if and wherever such third-party acknowlegements normally appear. |
| * |
| * 4. The names "The Jakarta Project", "Ant", and "Apache Software |
| * Foundation" must not be used to endorse or promote products derived |
| * from this software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache" |
| * nor may "Apache" appear in their names without prior written |
| * permission of the Apache Group. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| |
| package org.apache.tools.ant.taskdefs.optional.ide; |
| |
| |
| |
| import java.io.IOException; |
| |
| |
| |
| import javax.servlet.http.HttpServlet; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| import javax.servlet.ServletException; |
| |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.util.StringUtils; |
| |
| /** |
| * Abstract base class to provide common services for the |
| * VAJ tool API servlets |
| * |
| * @author Wolf Siberski, based on servlets written by Glenn McAllister |
| */ |
| public abstract class VAJToolsServlet extends HttpServlet { |
| /** |
| * Adaptation of VAJUtil for servlet context. |
| */ |
| class VAJLocalServletUtil extends VAJLocalUtil { |
| public void log(String msg, int level) { |
| try { |
| if (msg != null) { |
| msg = msg.replace('\r', ' '); |
| int i = 0; |
| while (i < msg.length()) { |
| int nlPos = msg.indexOf('\n', i); |
| if (nlPos == -1) { |
| nlPos = msg.length(); |
| } |
| response.getWriter().println(Integer.toString(level) |
| + " " + msg.substring(i, nlPos)); |
| i = nlPos + 1; |
| } |
| } |
| } catch (IOException e) { |
| throw new BuildException("logging failed. msg was: " |
| + e.getMessage()); |
| } |
| } |
| } |
| |
| // constants for servlet param names |
| public static final String DIR_PARAM = "dir"; |
| public static final String INCLUDE_PARAM = "include"; |
| public static final String EXCLUDE_PARAM = "exclude"; |
| public static final String CLASSES_PARAM = "cls"; |
| public static final String SOURCES_PARAM = "src"; |
| public static final String RESOURCES_PARAM = "res"; |
| public static final String DEFAULT_EXCLUDES_PARAM = "dex"; |
| public static final String PROJECT_NAME_PARAM = "project"; |
| |
| |
| // current request |
| HttpServletRequest request; |
| |
| // response to current request |
| HttpServletResponse response; |
| |
| // implementation of VAJUtil used by the servlet |
| VAJUtil util; |
| |
| |
| /** |
| * Execute the request by calling the appropriate |
| * VAJ tool API methods. This method must be implemented |
| * by the concrete servlets |
| */ |
| protected abstract void executeRequest(); |
| |
| /** |
| * Respond to a HTTP request. This method initializes |
| * the servlet and handles errors. |
| * The real work is done in the abstract method executeRequest() |
| */ |
| public void doGet(HttpServletRequest req, HttpServletResponse res) |
| throws ServletException, IOException { |
| try { |
| response = res; |
| request = req; |
| initRequest(); |
| executeRequest(); |
| } catch (BuildException e) { |
| util.log("Error occured: " + e.getMessage(), VAJUtil.MSG_ERR); |
| } catch (Exception e) { |
| try { |
| if (!(e instanceof BuildException)) { |
| String trace = StringUtils.getStackTrace(e); |
| util.log("Program error in " + this.getClass().getName() |
| + ":\n" + trace, VAJUtil.MSG_ERR); |
| } |
| } catch (Throwable t) { |
| t.printStackTrace(); |
| } finally { |
| if (!(e instanceof BuildException)) { |
| throw new ServletException(e.getMessage()); |
| } |
| } |
| } |
| } |
| |
| /** |
| * initialize the servlet. |
| */ |
| protected void initRequest() throws IOException { |
| response.setContentType("text/ascii"); |
| if (util == null) { |
| util = new VAJLocalServletUtil(); |
| } |
| } |
| |
| /** |
| * Get the VAJUtil implementation |
| */ |
| VAJUtil getUtil() { |
| return util; |
| } |
| |
| /** |
| * Get the boolean value of a parameter. |
| */ |
| protected boolean getBooleanParam(String param) { |
| return getBooleanParam(param, false); |
| } |
| |
| /** |
| * Get the boolean value of a parameter, with a default value if |
| * the parameter hasn't been passed to the servlet. |
| */ |
| protected boolean getBooleanParam(String param, boolean defaultValue) { |
| String value = getFirstParamValueString(param); |
| if (value != null) { |
| return toBoolean(value); |
| } else { |
| return defaultValue; |
| } |
| } |
| |
| /** |
| * Returns the first encountered value for a parameter. |
| */ |
| protected String getFirstParamValueString(String param) { |
| String[] paramValuesArray = request.getParameterValues(param); |
| if (paramValuesArray == null) { |
| return null; |
| } |
| return paramValuesArray[0]; |
| } |
| |
| /** |
| * Returns all values for a parameter. |
| */ |
| protected String[] getParamValues(String param) { |
| return request.getParameterValues(param); |
| } |
| |
| /** |
| * A utility method to translate the strings "yes", "true", and "ok" |
| * to boolean true, and everything else to false. |
| */ |
| protected boolean toBoolean(String string) { |
| String lower = string.toLowerCase(); |
| return (lower.equals("yes") || lower.equals("true") || lower.equals("ok")); |
| } |
| } |