org.yaml.snakeyaml.resolver.Resolver Java Examples

private static Yaml newYaml(Map<String, String> environment) {
    return new Yaml(new EnvironmentConstructor(environment),
                    new Representer(),
                    new DumperOptions(),
                    new Resolver() {
                        @Override
                        public Tag resolve(NodeId kind, String value, boolean implicit) {
                            if (value != null) {
                                if (value.startsWith("${env.")) {
                                    return new Tag("!env");
                                }
                                if (value.equalsIgnoreCase("on") ||
                                        value.equalsIgnoreCase("off") ||
                                        value.equalsIgnoreCase("yes") ||
                                        value.equalsIgnoreCase("no")) {
                                    return Tag.STR;
                                }
                            }
                            return super.resolve(kind, value, implicit);
                        }
                    });
}
 

private static Map<String, Object> loadPubspecInfo(@NotNull String yamlContents) {
  final Yaml yaml = new Yaml(new SafeConstructor(), new Representer(), new DumperOptions(), new Resolver() {
    @Override
    protected void addImplicitResolvers() {
      this.addImplicitResolver(Tag.BOOL, BOOL, "yYnNtTfFoO");
      this.addImplicitResolver(Tag.NULL, NULL, "~nN\u0000");
      this.addImplicitResolver(Tag.NULL, EMPTY, null);
      this.addImplicitResolver(new Tag("tag:yaml.org,2002:value"), VALUE, "=");
      this.addImplicitResolver(Tag.MERGE, MERGE, "<");
    }
  });

  try {
    //noinspection unchecked
    return (Map)yaml.load(yamlContents);
  }
  catch (Exception e) {
    return null;
  }
}
 

/**
 * Create Yaml instance. It is safe to create a few instances and use them
 * in different Threads.
 * 
 * @param constructor
 *            BaseConstructor to construct incoming documents
 * @param representer
 *            Representer to emit outgoing objects
 * @param dumperOptions
 *            DumperOptions to configure outgoing objects
 * @param resolver
 *            Resolver to detect implicit type
 */
public Yaml(BaseConstructor constructor, Representer representer, DumperOptions dumperOptions,
        Resolver resolver) {
    if (!constructor.isExplicitPropertyUtils()) {
        constructor.setPropertyUtils(representer.getPropertyUtils());
    } else if (!representer.isExplicitPropertyUtils()) {
        representer.setPropertyUtils(constructor.getPropertyUtils());
    }
    this.constructor = constructor;
    representer.setDefaultFlowStyle(dumperOptions.getDefaultFlowStyle());
    representer.setDefaultScalarStyle(dumperOptions.getDefaultScalarStyle());
    representer.getPropertyUtils().setAllowReadOnlyProperties(
            dumperOptions.isAllowReadOnlyProperties());
    representer.setTimeZone(dumperOptions.getTimeZone());
    this.representer = representer;
    this.dumperOptions = dumperOptions;
    this.resolver = resolver;
    this.name = "Yaml:" + System.identityHashCode(this);
}
 

/**
 * Create Yaml instance. It is safe to create a few instances and use them
 * in different Threads.
 * 
 * @param constructor
 *            BaseConstructor to construct incoming documents
 * @param representer
 *            Representer to emit outgoing objects
 * @param dumperOptions
 *            DumperOptions to configure outgoing objects
 * @param resolver
 *            Resolver to detect implicit type
 */
public Yaml(BaseConstructor constructor, Representer representer, DumperOptions dumperOptions,
        Resolver resolver) {
    if (!constructor.isExplicitPropertyUtils()) {
        constructor.setPropertyUtils(representer.getPropertyUtils());
    } else if (!representer.isExplicitPropertyUtils()) {
        representer.setPropertyUtils(constructor.getPropertyUtils());
    }
    this.constructor = constructor;
    representer.setDefaultFlowStyle(dumperOptions.getDefaultFlowStyle());
    representer.setDefaultScalarStyle(dumperOptions.getDefaultScalarStyle());
    representer.getPropertyUtils().setAllowReadOnlyProperties(
            dumperOptions.isAllowReadOnlyProperties());
    representer.setTimeZone(dumperOptions.getTimeZone());
    this.representer = representer;
    this.dumperOptions = dumperOptions;
    this.resolver = resolver;
    this.name = "Yaml:" + System.identityHashCode(this);
}
 

private static Map<String, Object> loadPubspecInfo(@NotNull String yamlContents) {
  final Yaml yaml = new Yaml(new SafeConstructor(), new Representer(), new DumperOptions(), new Resolver() {
    @Override
    protected void addImplicitResolvers() {
      this.addImplicitResolver(Tag.BOOL, BOOL, "yYnNtTfFoO");
      this.addImplicitResolver(Tag.NULL, NULL, "~nN\u0000");
      this.addImplicitResolver(Tag.NULL, EMPTY, null);
      this.addImplicitResolver(new Tag("tag:yaml.org,2002:value"), VALUE, "=");
      this.addImplicitResolver(Tag.MERGE, MERGE, "<");
    }
  });

  try {
    //noinspection unchecked
    return (Map)yaml.load(yamlContents);
  }
  catch (Exception e) {
    return null;
  }
}
 

public Yaml createYamlReader() {
    return new Yaml(new Constructor(), new Representer(), new DumperOptions(), new Resolver() {
        @Override
        protected void addImplicitResolvers() {
            // Intentionally left TIMESTAMP as string to let DBUnit deal with the conversion
            addImplicitResolver(Tag.BOOL, BOOL, "yYnNtTfFoO");
            addImplicitResolver(Tag.INT, INT, "-+0123456789");
            addImplicitResolver(Tag.FLOAT, FLOAT, "-+0123456789.");
            addImplicitResolver(Tag.MERGE, MERGE, "<");
            addImplicitResolver(Tag.NULL, NULL, "~nN\0");
            addImplicitResolver(Tag.NULL, EMPTY, null);
            addImplicitResolver(Tag.VALUE, VALUE, "=");
            addImplicitResolver(Tag.YAML, YAML, "!&*");
        }
    });
}
 

/**
 * Create Yaml instance. It is safe to create a few instances and use them
 * in different Threads.
 *
 * @param serialization
 *         serialization instance.
 * @param constructor
 *         BaseConstructor to construct incoming documents
 * @param representer
 *         Representer to emit outgoing objects
 * @param dumperOptions
 *         DumperOptions to configure outgoing objects
 * @param resolver
 *         Resolver to detect implicit type
 */
public Yaml(Serialization serialization, YamlConstructor constructor, Representer representer, DumperOptions dumperOptions, Resolver resolver)
{
    representer.initMultiRepresenters();
    this.serialization = serialization;
    if (! constructor.isExplicitPropertyUtils())
    {
        constructor.setPropertyUtils(representer.getPropertyUtils());
    }
    else if (! representer.isExplicitPropertyUtils())
    {
        representer.setPropertyUtils(constructor.getPropertyUtils());
    }
    this.constructor = constructor;
    representer.setDefaultFlowStyle(dumperOptions.getDefaultFlowStyle());
    representer.setDefaultScalarStyle(dumperOptions.getDefaultScalarStyle());
    representer.getPropertyUtils().setAllowReadOnlyProperties(dumperOptions.isAllowReadOnlyProperties());
    representer.setTimeZone(dumperOptions.getTimeZone());
    this.representer = representer;
    this.dumperOptions = dumperOptions;
    this.resolver = resolver;
    this.name = "Yaml:" + DioriteThreadUtils.getFullThreadName(Thread.currentThread());
}
 

public static Node read(YamlSource source, Reader reader, ConfigurationContext context) throws IOException {
    LoaderOptions loaderOptions = new LoaderOptions();
    loaderOptions.setMaxAliasesForCollections(context.getYamlMaxAliasesForCollections());
    Composer composer = new Composer(
        new ParserImpl(new StreamReaderWithSource(source, reader)),
        new Resolver(),
        loaderOptions);
    try {
        return composer.getSingleNode();
    } catch (YAMLException e) {
        if (e.getMessage().startsWith("Number of aliases for non-scalar nodes exceeds the specified max")) {
            throw new ConfiguratorException(String.format(
                "%s%nYou can increase the maximum by setting an environment variable or property%n  ENV: %s=\"100\"%n  PROPERTY: -D%s=\"100\"",
                e.getMessage(), ConfigurationContext.CASC_YAML_MAX_ALIASES_ENV,
                ConfigurationContext.CASC_YAML_MAX_ALIASES_PROPERTY));
        }
        throw e;
    }
}
 

public Serializer(Serialization serialization, Emitable emitter, Resolver resolver, DumperOptions opts, @Nullable Tag rootTag)
{
    this.serialization = serialization;
    this.emitter = EmitableWrapper.wrap(emitter);
    this.resolver = resolver;
    this.explicitStart = opts.isExplicitStart();
    this.explicitEnd = opts.isExplicitEnd();
    if (opts.getVersion() != null)
    {
        this.useVersion = opts.getVersion();
    }
    this.useTags = opts.getTags();
    this.serializedNodes = new HashSet<>(50);
    this.anchors = new HashMap<>(10);
    this.anchorGenerator = opts.getAnchorGenerator();
    this.closed = null;
    this.explicitRoot = rootTag;
}
 

public Map<String, Object> load(InputStream is) throws IOException {
  checkNotNull(is);
  String data = IOUtils.toString(new UnicodeReader(is));

  Map<String, Object> map;

  try {
    Yaml yaml = new Yaml(new Constructor(), new Representer(),
        new DumperOptions(), new Resolver());
    map = yaml.load(data);
  }
  catch (YAMLException e) {
    map = (Map<String, Object>) mapper.readValue(data, Map.class);
  }
  return map;
}
 

/**
 * Create Yaml instance. It is safe to create a few instances and use them
 * in different Threads.
 *
 * @param constructor
 *            BaseConstructor to construct incoming documents
 * @param representer
 *            Representer to emit outgoing objects
 * @param dumperOptions
 *            DumperOptions to configure outgoing objects
 * @param resolver
 *            Resolver to detect implicit type
 */
public Yaml(BaseConstructor constructor, Representer representer, DumperOptions dumperOptions,
            Resolver resolver) {
    if (!constructor.isExplicitPropertyUtils()) {
        constructor.setPropertyUtils(representer.getPropertyUtils());
    } else if (!representer.isExplicitPropertyUtils()) {
        representer.setPropertyUtils(constructor.getPropertyUtils());
    }
    this.constructor = constructor;
    representer.setDefaultFlowStyle(dumperOptions.getDefaultFlowStyle());
    representer.setDefaultScalarStyle(dumperOptions.getDefaultScalarStyle());
    representer.getPropertyUtils().setAllowReadOnlyProperties(
            dumperOptions.isAllowReadOnlyProperties());
    representer.setTimeZone(dumperOptions.getTimeZone());
    this.representer = representer;
    this.dumperOptions = dumperOptions;
    this.resolver = resolver;
    this.name = "Yaml:" + System.identityHashCode(this);
}
 

@Override
protected Yaml createYaml() {
    return new Yaml(new StrictMapAppenderConstructor(), new Representer(), new DumperOptions(), new Resolver() {

        @Override
        public void addImplicitResolver(Tag tag, Pattern regexp, String first) {
            if (tag == Tag.TIMESTAMP) {
                return;
            }
            super.addImplicitResolver(tag, regexp, first);
        }
    });
}
 

@Test
public void testAutoDecryptorClass() throws IOException {
    if (System.getenv("config_password") == null || !System.getenv("config_password").equals("light")) return;
    final Resolver resolver = new Resolver();
    resolver.addImplicitResolver(YmlConstants.CRYPT_TAG, YmlConstants.CRYPT_PATTERN, YmlConstants.CRYPT_FIRST);
    Yaml yaml = new Yaml(new DecryptConstructor("com.networknt.config.TestAutoDecryptor"), new Representer(), new DumperOptions(), resolver);

    Map<String, Object> secret=yaml.load(Config.getInstance().getInputStreamFromFile("secret-map-test2.yml"));

    Assert.assertEquals(SECRET+"-test", secret.get("serverKeystorePass"));
}
 

@Test
public void testDecryptorClass() {
    final Resolver resolver = new Resolver();
    resolver.addImplicitResolver(YmlConstants.CRYPT_TAG, YmlConstants.CRYPT_PATTERN, YmlConstants.CRYPT_FIRST);
    Yaml yaml = new Yaml(new DecryptConstructor("com.networknt.config.TestDecryptor"), new Representer(), new DumperOptions(), resolver);
	
    Map<String, Object> secret=yaml.load(Config.getInstance().getInputStreamFromFile("secret-map-test2.yml"));
    
    Assert.assertEquals(SECRET+"-test", secret.get("serverKeystorePass"));
}
 

private List<Node> canonical_compose_all(InputStream file) {
    StreamReader reader = new StreamReader(new UnicodeReader(file));
    StringBuilder buffer = new StringBuilder();
    while (reader.peek() != '\0') {
        buffer.append(reader.peek());
        reader.forward();
    }
    CanonicalParser parser = new CanonicalParser(buffer.toString());
    Composer composer = new Composer(parser, new Resolver());
    List<Node> documents = new ArrayList<Node>();
    while (composer.checkNode()) {
        documents.add(composer.getNode());
    }
    return documents;
}
 

private List<Node> compose_all(InputStream file) {
    Composer composer = new Composer(new ParserImpl(new StreamReader(new UnicodeReader(file))),
            new Resolver());
    List<Node> documents = new ArrayList<Node>();
    while (composer.checkNode()) {
        documents.add(composer.getNode());
    }
    return documents;
}
 

@SuppressWarnings("unchecked")
private List<Object> construct(Constructor constructor, String data) {
    StreamReader reader = new StreamReader(data);
    Parser parser = new ParserImpl(reader);
    Resolver resolver = new Resolver();
    Composer composer = new Composer(parser, resolver);
    constructor.setComposer(composer);
    List<Object> result = (List<Object>) constructor.getSingleData(Object.class);
    return result;
}
 

private Object construct(Constructor constructor, String data) {
    StreamReader reader = new StreamReader(data);
    Parser parser = new ParserImpl(reader);
    Resolver resolver = new Resolver();
    Composer composer = new Composer(parser, resolver);
    constructor.setComposer(composer);
    return constructor.getSingleData(Object.class);
}
 

public void testFragment() {
    String document = "foo:  blargle\n"
            + "developer:  { name: \"Bjarne Stroustrup\", language: \"C++\"}\n"
            + "gee:  [ \"whiz\", \"bang\"]\n";//

    StreamReader reader = new StreamReader(document);
    Composer composer = new FragmentComposer(new ParserImpl(reader), new Resolver(),
            "developer");
    Constructor constructor = new Constructor();
    constructor.setComposer(composer);
    DeveloperBean developer = (DeveloperBean) constructor.getSingleData(DeveloperBean.class);
    assertEquals("Bjarne Stroustrup", developer.name);
    assertEquals("C++", developer.language);
}
 

@Override
protected Yaml createYaml() {
    return new Yaml(new StrictMapAppenderConstructor(), new Representer(), new DumperOptions(), new Resolver() {

        @Override
        public void addImplicitResolver(Tag tag, Pattern regexp, String first) {
            if (tag == Tag.TIMESTAMP) {
                return;
            }
            super.addImplicitResolver(tag, regexp, first);
        }
    });
}
 

@Override
protected Yaml createYaml() {
    return new Yaml(new StrictMapAppenderConstructor(), new Representer(),
            new DumperOptions(), new Resolver() {
        @Override
        public void addImplicitResolver(Tag tag, Pattern regexp,
                                        String first) {
            if (tag == Tag.TIMESTAMP) {
                return;
            }
            super.addImplicitResolver(tag, regexp, first);
        }
    });
}
 

public String toYaml() {
	StringWriter writer = new StringWriter();
	DumperOptions dumperOptions = new DumperOptions();
	Serializer serializer = new Serializer(new Emitter(writer, dumperOptions), 
			new Resolver(), dumperOptions, Tag.MAP);
	try {
		serializer.open();
		serializer.serialize(this);
		serializer.close();
		return writer.toString();
	} catch (IOException e) {
		throw new RuntimeException(e);
	}
}
 

public Serializer(Emitable emitter, Resolver resolver, DumperOptions opts, Tag rootTag) {
    this.emitter = emitter;
    this.resolver = resolver;
    this.explicitStart = opts.isExplicitStart();
    this.explicitEnd = opts.isExplicitEnd();
    if (opts.getVersion() != null) {
        this.useVersion = opts.getVersion();
    }
    this.useTags = opts.getTags();
    this.serializedNodes = new HashSet<Node>();
    this.anchors = new HashMap<Node, String>();
    this.anchorGenerator = opts.getAnchorGenerator();
    this.closed = null;
    this.explicitRoot = rootTag;
}
 

public String getYamlContent(final ChartIndex index) {
  Yaml yaml = new Yaml(new JodaPropertyConstructor(),
      setupRepresenter(),
      new DumperOptions(),
      new Resolver());
  return yaml.dumpAsMap(index);
}
 

@VisibleForTesting
@Restricted(NoExternalUse.class)
public static void serializeYamlNode(Node root, Writer writer) throws IOException {
    DumperOptions options = new DumperOptions();
    options.setDefaultFlowStyle(BLOCK);
    options.setDefaultScalarStyle(PLAIN);
    options.setSplitLines(true);
    options.setPrettyFlow(true);
    Serializer serializer = new Serializer(new Emitter(writer, options), new Resolver(),
            options, null);
    serializer.open();
    serializer.serialize(root);
    serializer.close();
}
 

public JavaBeanLoader(LoaderOptions options, BeanAccess beanAccess) {
    if (options == null) {
        throw new NullPointerException("LoaderOptions must be provided.");
    }
    if (options.getRootTypeDescription() == null) {
        throw new NullPointerException("TypeDescription must be provided.");
    }
    Constructor constructor = new Constructor(options.getRootTypeDescription());
    loader = new Yaml(constructor, options, new Representer(), new DumperOptions(),
            new Resolver());
    loader.setBeanAccess(beanAccess);
}
 

public Serializer(Emitable emitter, Resolver resolver, DumperOptions opts, Tag rootTag) {
    this.emitter = emitter;
    this.resolver = resolver;
    this.explicitStart = opts.isExplicitStart();
    this.explicitEnd = opts.isExplicitEnd();
    if (opts.getVersion() != null) {
        this.useVersion = opts.getVersion();
    }
    this.useTags = opts.getTags();
    this.serializedNodes = new HashSet<Node>();
    this.anchors = new HashMap<Node, String>();
    this.lastAnchorId = 0;
    this.closed = null;
    this.explicitRoot = rootTag;
}
 

/**
 * @deprecated
 */
public Yaml(LoaderOptions loaderOptions) {
    this(new Constructor(), new Representer(), new DumperOptions(), new Resolver());
}
 

public Composer(Parser parser, Resolver resolver) {
    this.parser = parser;
    this.resolver = resolver;
    this.anchors = new HashMap<String, Node>();
    this.recursiveNodes = new HashSet<Node>();
}
 

/**
 * @deprecated use with Constructor instead of Loader
 */
public Yaml(Loader loader, Dumper dumper) {
    this(loader, dumper, new Resolver());
}