new loadfile task

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@270374 13f79535-47bb-0310-9956-ffa450edef68
23 years ago · a225264f50
--- a/docs/manual/CoreTasks/loadfile.html
+++ b/docs/manual/CoreTasks/loadfile.html
@@ -0,0 +1,73 @@
 <html>
 <head>
 <title>LoadFile</title>
 </head>
 <body>
 <h2><a name="loadfile">LoadFile</a></h2>
 <h3>Description</h3>
 <p>
 Load a text file into a single property. Unless an encoding is specified,
 the encoding of the current locale is used. There is no explicit limit
 upon the size of the file which can be loaded, but loading very large
 files is not something anyone has yet explored. 
 </p>
 <h3>Parameters</h3>
 <table border="1" cellpadding="2" cellspacing="0">
  <tr> 
    <td valign="top"><b>Attribute</b></td>
    <td valign="top"><b>Description</b></td>
    <td align="center" valign="top"><b>Required</b></td>
  </tr>
  <tr> 
    <td valign="top">srcFile</td>
    <td valign="top">source file</td>
    <td valign="top" align="center">Yes</td>
  </tr>
  <tr> 
    <td valign="top">property</td>
    <td valign="top">property to save to</td>
    <td valign="top" align="center">Yes</td>
  </tr>
  <tr> 
    <td valign="top">encoding</td>
    <td valign="top">encoding to use when loading the file</td>
    <td align="center" valign="top">No</td>
  </tr>
  <tr> 
    <td valign="top">failonerror</td>
    <td valign="top">Whether to halt the build on failure</td>
    <td align="center" valign="top">No, default "true"</td>
  </tr>
 </table>
 <h3>Examples</h3>
 <pre>    &lt;loadfile property="mail.recipients"
      srcFile="recipients.txt" / &gt;
 </pre>
 Load file recipients.txt into property "mail.recipients"
 <pre>    &lt;loadfile property="encoded-file"
      srcFile="loadfile.xml"
      encoding="ISO-8859-1" / &gt;
 </pre>
 Load a file using the latin-1 encoding
 <pre>    &lt;loadfile 
      property="optional.value" 
      srcFile="optional.txt" 
      failonerror="false" /&gt;
 </pre>
 Load a file, don't fail if it is missing (a message is printed, though) 
 <hr>
 <p align="center">Copyright &copy; 2000,2001 Apache Software Foundation. All rights
 Reserved.</p>
 </body>
 </html>
--- a/docs/manual/CoreTasks/overview.html
+++ b/docs/manual/CoreTasks/overview.html
@@ -193,6 +193,11 @@ specified.</p></td>
    <p><i>The Javadoc2 task is deprecated.  Use the Javadoc task
    instead.</i></p></td>
  </tr>
  <tr valign="top">
    <td><a href="loadfile.html">LoadFile</a></td>
    <td><p>Loads a file into a property</p></td>
  </tr>
  <tr valign="top">
    <td><a href="mail.html">Mail</a></td>
--- a/docs/manual/coretasklist.html
+++ b/docs/manual/coretasklist.html
@@ -56,6 +56,7 @@
 <a href="CoreTasks/java.html">Java</a><br>
 <a href="CoreTasks/javac.html">Javac</a><br>
 <a href="CoreTasks/javadoc.html">Javadoc/<i>Javadoc2</i></a><br>
 <a href="CoreTasks/loadfile.html">LoadFile</a><br>
 <a href="CoreTasks/mail.html">Mail</a><br>
 <a href="CoreTasks/manifest.html">Manifest</a><br>
 <a href="CoreTasks/mkdir.html">Mkdir</a><br>
--- a/src/etc/testcases/taskdefs/loadfile.xml
+++ b/src/etc/testcases/taskdefs/loadfile.xml
@@ -0,0 +1,53 @@
 <?xml version="1.0" encoding="ISO-8859-1"?>
 <project name="loadfile-test" basedir="." default="testLoadAFile">
  <!-- this is a latin one file containing the UKP £ symbol -->
  <target name="init">
  </target>
  <target name="testNoSourcefileDefined" depends="init">
    <loadfile property="foo" />
  </target>
  <target name="testNoPropertyDefined"
    depends="init">
    <loadfile srcFile="somefile" />
  </target>
  <target name="testNoSourcefilefound"
    depends="init">
    <loadfile property="missing" srcFile="somefile" />
  </target>
  <target name="testFailOnError"
    depends="init">
    <loadfile 
      property="testFailOnError" 
      srcFile="somefile" 
      failonerror="false"/>
  </target>  
  <target name="testLoadAFile"
    depends="init">
    <echo 
      message="What's it going to be then, eh?"
      file="loadfile1.tmp"
      />
    <loadfile property="testLoadAFile" srcFile="loadfile1.tmp" />
    <echo>${testLoadAFile}</echo>
  </target>
  <target name="testLoadAFileEnc"
    depends="init">
    <loadfile property="testLoadAFileEnc"
      srcFile="loadfile.xml"
      encoding="ISO-8859-1"/>
  </target>
  <target name="cleanup"> 
    <delete file="loadfile1.tmp"/>
  </target>
  </project>
--- a/src/main/org/apache/tools/ant/taskdefs/LoadFile.java
+++ b/src/main/org/apache/tools/ant/taskdefs/LoadFile.java
@@ -0,0 +1,205 @@
 /*
 *  The Apache Software License, Version 1.1
 *
 *  Copyright (c) 1999 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;
 import org.apache.tools.ant.Task;
 import org.apache.tools.ant.Project;
 import org.apache.tools.ant.BuildException;
 import org.apache.tools.ant.ProjectHelper;
 import org.apache.tools.ant.types.EnumeratedAttribute;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.InputStreamReader;
 import java.io.IOException;
 import java.io.BufferedInputStream;
 /**
 * Load a file into a property
 *
 * @author Steve Loughran
 * @created 10 December 2001
 */
 public class LoadFile extends Task {
    /**
     * source file, usually null
     */
    private File srcFile = null;
    /**
     * what to do when it goes pear-shaped
     */
    private boolean failOnError = true;
    /**
     * Encoding to use for filenames, defaults to the platform's default
     * encoding.
     */
    private String encoding = null;
    /**
     * name of property
     */
    private String property = null;
    /**
     * Encoding to use for filenames, defaults to the platform's default
     * encoding. <p>
     *
     * For a list of possible values see <a href="http://java.sun.com/products/jdk/1.2/docs/guide/internat/encoding.doc.html">
     * http://java.sun.com/products/jdk/1.2/docs/guide/internat/encoding.doc.html
     * </a>.</p>
     *
     * @param encoding The new Encoding value
     */
    public void setEncoding(String encoding) {
        this.encoding = encoding;
    }
    /**
     * Sets the Property attribute of the LoadFile object
     *
     * @param property The new Property value
     */
    public void setProperty(String property) {
        this.property = property;
    }
    /**
     * Sets the srcfile attribute.
     *
     * @param srcFile The new SrcFile value
     */
    public void setSrcFile(File srcFile) {
        this.srcFile = srcFile;
    }
    /**
     * Sets the Failonerror attribute of the LoadFile object
     *
     * @param fail The new Failonerror value
     */
    public void setFailonerror(boolean fail) {
        failOnError = fail;
    }
    /**
     * read in a source file to a property
     *
     * @exception BuildException if something goes wrong with the build
     */
    public void execute()
        throws BuildException {
        //validation
        if (srcFile == null) {
            throw new BuildException("source file not defined");
        }
        if (property == null) {
            throw new BuildException("output property not defined");
        }
        FileInputStream fis = null;
        BufferedInputStream bis = null;
        InputStreamReader instream = null;
        log("loading "+srcFile+" into property "+property,Project.MSG_VERBOSE);
        try {
            long len = srcFile.length();
            log("file size = "+len,Project.MSG_DEBUG);
            //discard most of really big files
            if (len > Integer.MAX_VALUE) {
                log("this file is far to big to load completely");
            }
            int size=(int) len;
            char[] buffer = new char[size];
            //open up the file
            fis = new FileInputStream(srcFile);
            bis = new BufferedInputStream(fis);
            if (encoding == null) {
                instream = new InputStreamReader(bis);
            }
            else {
                instream = new InputStreamReader(bis, encoding);
            }
            instream.read(buffer);
            String text = new String(buffer);
            project.setNewProperty(property, text);
            log("loaded "+buffer.length+" characters",Project.MSG_VERBOSE);
            log(property+" := "+text,Project.MSG_DEBUG);
        } catch (IOException ioe) {
            String message = "Unable to load file: " + ioe.toString();
            if (failOnError) {
                throw new BuildException(message, ioe, location);
            }
            else {
                log(message, Project.MSG_ERR);
            }
        } finally {
            try {
                if (fis != null) {
                    fis.close();
                }
            } catch (IOException ioex) {
            }
        }
    }
 //end class
 }
--- a/src/main/org/apache/tools/ant/taskdefs/defaults.properties
+++ b/src/main/org/apache/tools/ant/taskdefs/defaults.properties
@@ -58,8 +58,12 @@ bunzip2=org.apache.tools.ant.taskdefs.BUnzip2
 checksum=org.apache.tools.ant.taskdefs.Checksum
 waitfor=org.apache.tools.ant.taskdefs.WaitFor
 input=org.apache.tools.ant.taskdefs.Input
 <<<<<<< defaults.properties
 loadfile=org.apache.tools.ant.taskdefs.LoadFile
 =======
 manifest=org.apache.tools.ant.taskdefs.Manifest
 >>>>>>> 1.100
 # optional tasks
 script=org.apache.tools.ant.taskdefs.optional.Script
 netrexxc=org.apache.tools.ant.taskdefs.optional.NetRexxC
--- a/src/testcases/org/apache/tools/ant/taskdefs/LoadFileTest.java
+++ b/src/testcases/org/apache/tools/ant/taskdefs/LoadFileTest.java
@@ -0,0 +1,157 @@
 /*
 *  The Apache Software License, Version 1.1
 *
 *  Copyright (c) 2001 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;
 import org.apache.tools.ant.BuildFileTest;
 import org.apache.tools.ant.Project;
 import org.apache.tools.ant.BuildException;
 import java.io.File;
 /**
 * Test the load file task
 *
 * @author Steve Loughran
 * @created 10 December 2001
 */
 public class LoadFileTest extends BuildFileTest {
    /**
     * Constructor for the LoadFileTest object
     *
     * @param name Description of Parameter
     */
    public LoadFileTest(String name) {
        super(name);
    }
    /**
     * The JUnit setup method
     */
    public void setUp() {
        configureProject("src/etc/testcases/taskdefs/loadfile.xml");
    }
    /**
     * The teardown method for JUnit
     */
    public void tearDown() {
        executeTarget("cleanup");
    }
    /**
     * A unit test for JUnit
     */
    public void testNoSourcefileDefined() {
        expectBuildException("testNoSourcefileDefined",
                "source file not defined");
    }
    /**
     * A unit test for JUnit
     */
    public void testNoPropertyDefined() {
        expectBuildException("testNoPropertyDefined",
                "output property not defined");
    }
    /**
     * A unit test for JUnit
     */
    public void testNoSourcefilefound() {
        expectBuildExceptionContaining("testNoSourcefilefound",
                "File not found",
                "Unable to load file");
    }
    /**
     * A unit test for JUnit
     */
    public void testFailOnError() 
            throws BuildException {
        executeTarget("testFailOnError");
        if(project.getProperty("testFailOnError")!=null) {
            fail("property should not have been defined");        
        }
    }
    /**
     * A unit test for JUnit
     */
    public void testLoadAFile() 
            throws BuildException {
        executeTarget("testLoadAFile");
        if(project.getProperty("testLoadAFile").indexOf("eh?")<0)
            fail("property is not all in the file");
    }
    /**
     * A unit test for JUnit
     */
    public void testLoadAFileEnc() 
            throws BuildException {
        executeTarget("testLoadAFileEnc");
        if(project.getProperty("testLoadAFileEnc").indexOf("\u00a3")<0)
            fail("property is not all in the file");
    }
 }