Examples with Joiner com.google.common.base.Joiner used on opensource projects

Example 41 with Joiner

use of com.google.common.base.Joiner in project jackrabbit-oak by apache.

the class MarkSweepGarbageCollector method iterateNodeTree.

/**
     * Iterates the complete node tree and collect all blob references
     * @param fs the garbage collector file state
     * @param logPath whether to log path in the file or not
     */
protected void iterateNodeTree(GarbageCollectorFileState fs, final boolean logPath) throws IOException {
    final BufferedWriter writer = Files.newWriter(fs.getMarkedRefs(), Charsets.UTF_8);
    final AtomicInteger count = new AtomicInteger();
    try {
        marker.collectReferences(new ReferenceCollector() {

            private final boolean debugMode = LOG.isTraceEnabled();

            @Override
            public void addReference(String blobId, final String nodeId) {
                if (debugMode) {
                    LOG.trace("BlobId : {}, NodeId : {}", blobId, nodeId);
                }
                try {
                    Iterator<String> idIter = blobStore.resolveChunks(blobId);
                    final Joiner delimJoiner = Joiner.on(DELIM).skipNulls();
                    Iterator<List<String>> partitions = Iterators.partition(idIter, getBatchCount());
                    while (partitions.hasNext()) {
                        List<String> idBatch = Lists.transform(partitions.next(), new Function<String, String>() {

                            @Nullable
                            @Override
                            public String apply(@Nullable String id) {
                                if (logPath) {
                                    return delimJoiner.join(id, nodeId);
                                }
                                return id;
                            }
                        });
                        if (debugMode) {
                            LOG.trace("chunkIds : {}", idBatch);
                        }
                        count.getAndAdd(idBatch.size());
                        saveBatchToFile(idBatch, writer);
                    }
                    if (count.get() % getBatchCount() == 0) {
                        LOG.info("Collected ({}) blob references", count.get());
                    }
                } catch (Exception e) {
                    throw new RuntimeException("Error in retrieving references", e);
                }
            }
        });
        LOG.info("Number of valid blob references marked under mark phase of " + "Blob garbage collection [{}]", count.get());
        // sort the marked references with the first part of the key
        sort(fs.getMarkedRefs(), new Comparator<String>() {

            @Override
            public int compare(String s1, String s2) {
                return s1.split(DELIM)[0].compareTo(s2.split(DELIM)[0]);
            }
        });
    } finally {
        closeQuietly(writer);
    }
}

Example 42 with Joiner

use of com.google.common.base.Joiner in project jackrabbit-oak by apache.

the class AbstractTest method statsFormatsJoined.

private String statsFormatsJoined(boolean commaSeparated) {
    String comment = comment();
    String[] formatPattern = statsFormats();
    if (comment != null) {
        String commentPattern = commaSeparated ? "#%s" : "    #%s";
        formatPattern = (String[]) ArrayUtils.add(formatPattern, commentPattern);
    }
    Joiner joiner = commaSeparated ? Joiner.on(',') : Joiner.on("  ");
    return joiner.join(formatPattern);
}

Example 43 with Joiner

use of com.google.common.base.Joiner in project jackrabbit-oak by apache.

the class AbstractTest method statsNamesJoined.

private String statsNamesJoined(boolean commaSeparated) {
    Joiner joiner = commaSeparated ? Joiner.on(',') : Joiner.on("  ");
    String names = joiner.join(statsNames());
    if (!commaSeparated) {
        names = " " + names;
    }
    return names;
}

Example 44 with Joiner

use of com.google.common.base.Joiner in project jslint4java by happygiraffe.

the class MainTest method assertLintOutput.

/**
 * Check that the exit value, stdout and stderr are as expected.
 */
private void assertLintOutput(int actualExit, int expectedExit, List<String> expectedStdout, List<String> expectedStderr) {
    Joiner nl = Joiner.on(NEWLINE);
    assertThat(stdio.getStdout(), is(nl.join(maybeAddTrailer(expectedStdout))));
    assertThat(stdio.getStderr(), is(nl.join(maybeAddTrailer(expectedStderr))));
    // Do this last so that we see stdout/stderr errors first.
    assertThat(actualExit, is(expectedExit));
}

Example 45 with Joiner

use of com.google.common.base.Joiner in project LearningGuava by JavaMilk.

the class TestSplitter method testSplitter.

@Test
public void testSplitter() {
    Joiner joiner = Joiner.on(",");
    Iterable<String> result;
    // 按字符划分 Splitter.on(char)
    result = Splitter.on(',').split("foo,bar,qux");
    Assert.assertEquals(joiner.join(result), "foo,bar,qux");
    // 按字 CharMatcher 划分 Splitter.on(CharMatcher)
    result = Splitter.on(CharMatcher.anyOf(";,.")).split("foo;bar,qux");
    Assert.assertEquals(joiner.join(result), "foo,bar,qux");
    // 按字符串划分 Splitter.on(String)
    result = Splitter.on("，").split("foo,bar,qux");
    Assert.assertEquals(joiner.join(result), "foo,bar,qux");
    // 按正则表达式划分 Splitter.onPattern(String)  or Splitter.on(Pattern)
    result = Splitter.onPattern("\\s+").split("foo bar qux");
    Assert.assertEquals(joiner.join(result), "foo,bar,qux");
    // 按固定长度划分 Splitter.fixedLength(int)
    result = Splitter.fixedLength(3).split("foobarqux");
    Assert.assertEquals(joiner.join(result), "foo,bar,qux");
    // 去除结果中的空字符串
    result = Splitter.on(",").omitEmptyStrings().split("foo,,,bar,qux");
    Assert.assertEquals(joiner.join(result), "foo,bar,qux");
    // 结果前后去除空格
    result = Splitter.on(",").trimResults().split("foo  ,bar,qux");
    Assert.assertEquals(joiner.join(result), "foo,bar,qux");
    // 只是去除前后的，内部不去除
    result = Splitter.on(",").trimResults().split("foo  ,b a r,qux");
    Assert.assertEquals(joiner.join(result), "foo,b a r,qux");
    // 结果前后去除 "_"
    result = Splitter.on(',').trimResults(CharMatcher.is('_')).split("_a ,_b_ ,c__");
    Assert.assertEquals(joiner.join(result), "a ,b_ ,c");
    // 达到指定个数后不再划分
    result = Splitter.on("_").limit(2).split("foo_bar_qux");
    Assert.assertEquals(joiner.join(result), "foo,bar_qux");
}