Examples of org.codehaus.jackson.map.ObjectMapper.readValue()

Class org.codehaus.jackson.map.ObjectMapper

Examples of org.codehaus.jackson.map.ObjectMapper.readValue()

org.codehaus.jackson.map.ObjectMapper.readValue()
Method to deserialize Json content into a non-container type (it can be an array type, however): typically a bean, array or a wrapper type (like {@link java.lang.Boolean}).
Note: this method should NOT be used if the result type is a container ( {@link java.util.Collection} or {@link java.util.Map}. The reason is that due to type erasure, key and value types can not be introspected when using this method.


  public static Map<String, Object> parseAsJSONValue(String src) {
    ObjectMapper mapper = new ObjectMapper();
    ObjectNode rootNode;
    try {
      rootNode = (ObjectNode) mapper.readValue(src, JsonNode.class);
    } catch (JsonParseException e) {
      throw new RuntimeException(e);
    } catch (JsonMappingException e) {
      throw new RuntimeException(e);
    } catch (IOException e) {

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        if (isEmpty(geoLocation)) {
            throw new IllegalStateException("Got the unexpected value '" + geoLocation + "' for the geolocation");
        }


        ObjectMapper mapper = new ObjectMapper();
        JsonNode node = mapper.readValue(geoLocation, JsonNode.class);
        JsonNode latitudeNode = notNull(node.get("latitude"), "latitude");
        JsonNode longitudeNode = notNull(node.get("longitude"), "longitude");


        return "lat=" + latitudeNode + "&lon=" + longitudeNode;
    }

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    java.nio.file.Path preferenceFile = Paths.get(preferenceFileUrl);
    try {
      ObjectMapper om = new ObjectMapper();
      TypeReference readType = new TypeReference<HashMap<String, Object>>() {
      };
      Map<String, Object> prefs = om.readValue(preferenceFile.toFile(), readType);
      Boolean oldValue = (Boolean) prefs.get("allow-anonymous-usage-tracking");
      // If value changed, write it to the file too
      if ((this.isAllowAnonymousTracking == null && oldValue != null)
              || (this.isAllowAnonymousTracking != null && !(this.isAllowAnonymousTracking.equals(oldValue)))) {
        prefs.put("allow-anonymous-usage-tracking", this.isAllowAnonymousTracking);

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    java.nio.file.Path preferenceFile = Paths.get(preferenceFileUrl);
    try {
      ObjectMapper om = new ObjectMapper();
      TypeReference readType = new TypeReference<HashMap<String, Object>>() {
      };
      Map<String, Object> prefs = om.readValue(preferenceFile.toFile(), readType);
      Boolean oldValue = (Boolean) prefs.get("advanced-mode");
      // If value changed, write it to the file too
      if ((this.isUseAdvancedMode == null && oldValue != null)
              || (this.isUseAdvancedMode != null && !(this.isUseAdvancedMode.equals(oldValue)))) {
        prefs.put("advanced-mode", this.isUseAdvancedMode);

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    StringWriter outWriter = new StringWriter();
    Configuration.dumpConfiguration(conf, outWriter);
    String jsonStr = outWriter.toString();
    ObjectMapper mapper = new ObjectMapper();
    JsonConfiguration jconf = 
      mapper.readValue(jsonStr, JsonConfiguration.class);
    int defaultLength = jconf.getProperties().length;
    
    // add 3 keys to the existing configuration properties
    out=new BufferedWriter(new FileWriter(CONFIG));
    startConfig();

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    outWriter = new StringWriter();
    Configuration.dumpConfiguration(conf, outWriter);
    jsonStr = outWriter.toString();
    mapper = new ObjectMapper();
    jconf = mapper.readValue(jsonStr, JsonConfiguration.class);
    int length = jconf.getProperties().length;
    // check for consistency in the number of properties parsed in Json format.
    assertEquals(length, defaultLength+3);
    
    //change few keys in another resource file

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    outWriter = new StringWriter();
    Configuration.dumpConfiguration(conf, outWriter);
    jsonStr = outWriter.toString();
    mapper = new ObjectMapper();
    jconf = mapper.readValue(jsonStr, JsonConfiguration.class);
    
    // put the keys and their corresponding attributes into a hashmap for their 
    // efficient retrieval
    HashMap<String,JsonProperty> confDump = new HashMap<String,JsonProperty>();
    for(JsonProperty prop : jconf.getProperties()) {

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    conf.set("test.key6", "${test.key5}");
    outWriter = new StringWriter();
    Configuration.dumpConfiguration(conf, outWriter);
    jsonStr = outWriter.toString();
    mapper = new ObjectMapper();
    jconf = mapper.readValue(jsonStr, JsonConfiguration.class);
    confDump = new HashMap<String, JsonProperty>();
    for(JsonProperty prop : jconf.getProperties()) {
      confDump.put(prop.getKey(), prop);
    }
    assertEquals("value5",confDump.get("test.key6").getValue());

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    StringWriter outWriter = new StringWriter();
    Configuration.dumpConfiguration(config, outWriter);
    String jsonStr = outWriter.toString();
    ObjectMapper mapper = new ObjectMapper();
    JsonConfiguration jconf = 
      mapper.readValue(jsonStr, JsonConfiguration.class);
    
    //ensure that no properties are loaded.
    assertEquals(0, jconf.getProperties().length);
    
    // add 2 keys

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    outWriter = new StringWriter();
    Configuration.dumpConfiguration(config, outWriter);
    jsonStr = outWriter.toString();
    mapper = new ObjectMapper();
    jconf = mapper.readValue(jsonStr, JsonConfiguration.class);
    
    HashMap<String, JsonProperty>confDump = new HashMap<String, JsonProperty>();
    for (JsonProperty prop : jconf.getProperties()) {
      confDump.put(prop.getKey(), prop);
    }

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