com.google.common.base.CharMatcher#is ( )源码实例Demo

private static int[] indicesOf(String input, char c) {
    CharMatcher matcher = CharMatcher.is(c);
    int count = matcher.countIn(input);
    int[] indices = new int[count];
    int lastIndex = 0;
    for (int i = 0; i < count; i++) {
        indices[i] = input.indexOf(c, lastIndex + 1);
        lastIndex = indices[i];
    }
    return indices;
}
 

@Override
protected Object convertValue(String... values) {
	final Object result = Array.newInstance(field.getType().getComponentType(), values.length);
	final CharMatcher matcher = CharMatcher.is('"');
	for (int i = 0; i < values.length; i++) {
		final String value = matcher.trimFrom(StringUtils.strip(values[i]));
		final Object converted = converter.readFromString(value);
		Array.set(result, i, converted);
	}
	return result;
}
 

@Override
CharMatcher padding() {
  return (paddingChar == null)
    ? CharMatcher.none()
    : CharMatcher.is(paddingChar.charValue());
}
 

@Override
CharMatcher padding() {
  return (paddingChar == null)
    ? CharMatcher.none()
    : CharMatcher.is(paddingChar.charValue());
}
 

@Override
CharMatcher padding() {
  return (paddingChar == null)
    ? CharMatcher.none()
    : CharMatcher.is(paddingChar.charValue());
}
 

@Override
CharMatcher padding() {
  return (paddingChar == null)
    ? CharMatcher.none()
    : CharMatcher.is(paddingChar.charValue());
}
 

@Override
CharMatcher padding() {
  return (paddingChar == null) ? CharMatcher.none() : CharMatcher.is(paddingChar.charValue());
}
 

private boolean configureWorkspace(ResourceSet resourceSet) {
	List<File> sourceFileList = getSourcePathFileList();
	File outputFile = getOutputPathFile();
	if (sourceFileList == null || outputFile == null) {
		return false;
	}

	File commonRoot = determineCommonRoot(outputFile, sourceFileList);

	// We don't want to use root ("/") as a workspace folder, didn't we?
	if (commonRoot == null || commonRoot.getParent() == null || commonRoot.getParentFile().getParent() == null) {
		log.error("All source folders and the output folder should have "
				+ "a common parent non-top level folder (like project folder)");
		for (File sourceFile : sourceFileList) {
			log.error("(Source folder: '" + sourceFile + "')");
		}
		log.error("(Output folder: '" + outputFile + "')");
		return false;
	}
	projectConfig = new FileProjectConfig(commonRoot, commonRoot.getName());

	java.net.URI commonURI = commonRoot.toURI();
	java.net.URI relativizedTarget = commonURI.relativize(outputFile.toURI());
	if (relativizedTarget.isAbsolute()) {
		log.error("Target folder '" + outputFile + "' must be a child of the project folder '" + commonRoot + "'");
		return false;
	}
	CharMatcher slash = CharMatcher.is('/');
	String relativeTargetFolder = slash.trimTrailingFrom(relativizedTarget.getPath());
	outputConfiguration = Iterables.getOnlyElement(outputConfigurationProvider.getOutputConfigurations());
	outputConfiguration.setOutputDirectory(relativeTargetFolder);
	for (File source : sourceFileList) {
		java.net.URI relativizedSrc = commonURI.relativize(source.toURI());
		if (relativizedSrc.isAbsolute()) {
			log.error("Source folder '" + source + "' must be a child of the project folder '" + commonRoot + "'");
			return false;
		}
		projectConfig.addSourceFolder(slash.trimTrailingFrom(relativizedSrc.getPath()));
	}
	Map<String, Set<OutputConfiguration>> outputConfigurations = newHashMap();
	outputConfigurations.put(languageName, newHashSet(outputConfiguration));
	ProjectConfigAdapter.install(resourceSet, projectConfig);
	resourceSet.eAdapters().add(new OutputConfigurationAdapter(outputConfigurations));
	return true;
}