Examples with FileWriter java.io.FileWriter used on opensource projects

Example 26 with FileWriter

use of java.io.FileWriter in project hadoop by apache.

the class TestConfiguration method testNullValueProperties.

public void testNullValueProperties() throws Exception {
    Configuration conf = new Configuration();
    conf.setAllowNullValueProperties(true);
    out = new BufferedWriter(new FileWriter(CONFIG));
    startConfig();
    appendProperty("attr", "value", true);
    appendProperty("attr", "", true);
    endConfig();
    Path fileResource = new Path(CONFIG);
    conf.addResource(fileResource);
    assertEquals("value", conf.get("attr"));
}

Example 27 with FileWriter

use of java.io.FileWriter in project hadoop by apache.

the class TestConfiguration method testCommentsInValue.

public void testCommentsInValue() throws IOException {
    out = new BufferedWriter(new FileWriter(CONFIG));
    startConfig();
    appendProperty("my.comment", "this <!--comment here--> contains a comment");
    endConfig();
    Path fileResource = new Path(CONFIG);
    conf.addResource(fileResource);
    //two spaces one after "this", one before "contains"
    assertEquals("this  contains a comment", conf.get("my.comment"));
}

Example 28 with FileWriter

use of java.io.FileWriter in project hadoop by apache.

the class TestConfiguration method testRelativeIncludes.

public void testRelativeIncludes() throws Exception {
    tearDown();
    String relConfig = new File("./tmp/test-config.xml").getAbsolutePath();
    String relConfig2 = new File("./tmp/test-config2.xml").getAbsolutePath();
    new File(new File(relConfig).getParent()).mkdirs();
    out = new BufferedWriter(new FileWriter(relConfig2));
    startConfig();
    appendProperty("a", "b");
    endConfig();
    out = new BufferedWriter(new FileWriter(relConfig));
    startConfig();
    // Add the relative path instead of the absolute one.
    addInclude(new File(relConfig2).getName());
    appendProperty("c", "d");
    endConfig();
    // verify that the includes file contains all properties
    Path fileResource = new Path(relConfig);
    conf.addResource(fileResource);
    assertEquals(conf.get("a"), "b");
    assertEquals(conf.get("c"), "d");
    // Cleanup
    new File(relConfig).delete();
    new File(relConfig2).delete();
    new File(new File(relConfig).getParent()).delete();
}

Example 29 with FileWriter

use of java.io.FileWriter in project flink by apache.

the class CommonTestUtils method createTempFile.

/**
	 * Creates a temporary file that contains the given string.
	 * The file is written with the platform's default encoding.
	 * 
	 * <p>The temp file is automatically deleted on JVM exit.
	 * 
	 * @param contents The contents to be written to the file.
	 * @return The temp file URI.
	 */
public static String createTempFile(String contents) throws IOException {
    File f = File.createTempFile("flink_test_", ".tmp");
    f.deleteOnExit();
    try (BufferedWriter out = new BufferedWriter(new FileWriter(f))) {
        out.write(contents);
    }
    return f.toURI().toString();
}

Example 30 with FileWriter

use of java.io.FileWriter in project flink by apache.

the class YarnTestBase method writeYarnSiteConfigXML.

public static File writeYarnSiteConfigXML(Configuration yarnConf) throws IOException {
    tmp.create();
    File yarnSiteXML = new File(tmp.newFolder().getAbsolutePath() + "/yarn-site.xml");
    try (FileWriter writer = new FileWriter(yarnSiteXML)) {
        yarnConf.writeXml(writer);
        writer.flush();
    }
    return yarnSiteXML;
}