Example usage for com.fasterxml.jackson.core JsonGenerator getOutputContext

Introduction

In this page you can find the example usage for com.fasterxml.jackson.core JsonGenerator getOutputContext.

Prototype

public abstract JsonStreamContext getOutputContext();

Source Link

Usage

From source file:org.brutusin.json.impl.serializers.JsonNodeSerializer.java

@Override
public void serialize(JsonNode value, JsonGenerator gen, SerializerProvider provider) throws IOException {
    JsonWriteContext ctx = (JsonWriteContext) gen.getOutputContext();

    int status = ctx.writeValue();
    switch (status) {
    case JsonWriteContext.STATUS_OK_AFTER_COMMA:
        gen.writeRaw(',');
        break;//from w ww  .ja v a2 s. c o m
    case JsonWriteContext.STATUS_OK_AFTER_COLON:
        gen.writeRaw(':');
        break;
    case JsonWriteContext.STATUS_OK_AFTER_SPACE:
        gen.writeRaw(' ');
        break;
    }
    ;
    if (value == null) {
        gen.writeRaw("null");
    } else {
        gen.writeRaw(value.toString());
    }
}

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From source file:org.brutusin.json.impl.serializers.InputStreamSerializer.java

@Override
public void serialize(InputStream value, JsonGenerator gen, SerializerProvider provider) throws IOException {
    JsonWriteContext ctx = (JsonWriteContext) gen.getOutputContext();
    int status = ctx.writeValue();
    switch (status) {
    case JsonWriteContext.STATUS_OK_AFTER_COMMA:
        gen.writeRaw(',');
        break;//from  w w  w  .  j a v  a 2 s.  c  o m
    case JsonWriteContext.STATUS_OK_AFTER_COLON:
        gen.writeRaw(':');
        break;
    case JsonWriteContext.STATUS_OK_AFTER_SPACE:
        gen.writeRaw(' ');
        break;
    }
    ;
    if (value == null) {
        gen.writeRaw("null");
    } else {
        SerializationContext sCtx = SerializationContext.getCurrentContext();
        if (sCtx == null) {
            sCtx = new SerializationContext();
            SerializationContext.setCurrentContext(sCtx);
        }
        gen.writeRaw("\"" + sCtx.addStream(value) + "\"");
    }
}

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From source file:com.proofpoint.event.collector.FilteringMapSerializer.java

@Override
public void serialize(Map<String, ?> map, JsonGenerator jgen, SerializerProvider provider)
        throws IOException, JsonProcessingException {
    //have to do this before starting to write the object, otherwise proper context is lost.
    PropertyMapSelectionPolicy filter = findApplicableFilter(jgen.getOutputContext());
    jgen.writeStartObject();//ww  w.  ja  va2  s .  com
    for (Map.Entry<String, ?> entry : map.entrySet()) {
        String name = entry.getKey();

        if (!filter.matches(name)) {
            continue;
        }

        Object value = entry.getValue();
        jgen.writeObjectField(name, value);
    }
    jgen.writeEndObject();
}

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From source file:com.baasbox.configuration.PropertiesConfigurationHelper.java

public static String dumpConfigurationSectionAsFlatJson(String section) {
    Class en = CONFIGURATION_SECTIONS.get(section);
    try {//  w  ww  .  jav  a2s  .co m
        JsonFactory jfactory = new JsonFactory();
        StringWriter sw = new StringWriter();
        String enumDescription = "";
        JsonGenerator gen = jfactory.createJsonGenerator(sw);
        gen.writeStartArray();
        EnumSet values = EnumSet.allOf(en);
        for (Object v : values) {
            String key = (String) (en.getMethod("getKey")).invoke(v);

            boolean isVisible = (Boolean) (en.getMethod("isVisible")).invoke(v);
            String valueAsString;
            if (isVisible)
                valueAsString = (String) (en.getMethod("getValueAsString")).invoke(v);
            else
                valueAsString = "--HIDDEN--";
            boolean isEditable = (Boolean) (en.getMethod("isEditable")).invoke(v);
            boolean isOverridden = (Boolean) (en.getMethod("isOverridden")).invoke(v);
            String valueDescription = (String) (en.getMethod("getValueDescription")).invoke(v);
            Class type = (Class) en.getMethod("getType").invoke(v);

            gen.writeStartObject(); //               {
            gen.writeStringField("key", key);
            gen.writeStringField("value", valueAsString);
            gen.writeStringField("description", valueDescription); //                  ,"description":"description"
            gen.writeStringField("type", type.getSimpleName()); //                  ,"type":"type"
            gen.writeBooleanField("editable", isEditable);
            gen.writeBooleanField("overridden", isOverridden);
            gen.writeEndObject(); //               }
        }
        if (gen.getOutputContext().inArray())
            gen.writeEndArray(); //            ]
        gen.close();
        return sw.toString();
    } catch (Exception e) {
        BaasBoxLogger.error("Cannot generate a json for " + en.getSimpleName()
                + " Enum. Is it an Enum that implements the IProperties interface?", e);
    }
    return "{}";
}

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From source file:com.baasbox.configuration.PropertiesConfigurationHelper.java

/***
 *
 * Returns a json representation of the Enumerator
 * The Enumerator must implements the IProperties interface
 * @param en    the Enumerator to serialize. It must implements the IProperties interface
 * @return       the representation of the Enumerator 
 *//*from   www  .  java  2  s .  c o  m*/
@SuppressWarnings("unchecked")
public static String dumpConfigurationAsJson(String section) {
    Class en = CONFIGURATION_SECTIONS.get(section);
    try {
        JsonFactory jfactory = new JsonFactory();
        StringWriter sw = new StringWriter();
        String enumDescription = "";
        JsonGenerator gen = jfactory.createJsonGenerator(sw);

        Method getEnumDescription = en.getMethod("getEnumDescription");
        if (getEnumDescription != null && getEnumDescription.getReturnType() == String.class
                && Modifier.isStatic(getEnumDescription.getModifiers()))
            enumDescription = (String) getEnumDescription.invoke(null);
        gen.writeStartObject(); //{
        gen.writeStringField("section", section); //    "configuration":"EnumName"
        gen.writeStringField("description", enumDescription); //   ,"description": "EnumDescription"
        gen.writeFieldName("sub sections"); //  ,"sections":
        gen.writeStartObject(); //      {
        String lastSection = "";
        EnumSet values = EnumSet.allOf(en);
        for (Object v : values) {
            String key = (String) (en.getMethod("getKey")).invoke(v);
            boolean isVisible = (Boolean) (en.getMethod("isVisible")).invoke(v);
            String valueAsString;
            if (isVisible)
                valueAsString = (String) (en.getMethod("getValueAsString")).invoke(v);
            else
                valueAsString = "--HIDDEN--";
            boolean isEditable = (Boolean) (en.getMethod("isEditable")).invoke(v);
            String valueDescription = (String) (en.getMethod("getValueDescription")).invoke(v);
            Class type = (Class) en.getMethod("getType").invoke(v);
            String subsection = key.substring(0, key.indexOf('.'));
            if (!lastSection.equals(subsection)) {
                if (gen.getOutputContext().inArray())
                    gen.writeEndArray();
                gen.writeFieldName(subsection); //         "sectionName":
                gen.writeStartArray(); //            [
                lastSection = subsection;
            }
            boolean isOverridden = (Boolean) (en.getMethod("isOverridden")).invoke(v);
            gen.writeStartObject(); //               {
            gen.writeStringField(key, valueAsString); //                     "key": "value"   
            gen.writeStringField("description", valueDescription); //                  ,"description":"description"
            gen.writeStringField("type", type.getSimpleName()); //                  ,"type":"type"
            gen.writeBooleanField("editable", isEditable); //                  ,"editable":"true|false"
            gen.writeBooleanField("visible", isVisible); //                  ,"visible":"true|false"
            gen.writeBooleanField("overridden", isOverridden); //                  ,"overridden":"true|false"
            gen.writeEndObject(); //               }
        }
        if (gen.getOutputContext().inArray())
            gen.writeEndArray(); //            ]
        gen.writeEndObject(); //      }
        gen.writeEndObject(); //}
        gen.close();
        return sw.toString();
    } catch (Exception e) {
        BaasBoxLogger.error("Cannot generate a json for " + en.getSimpleName()
                + " Enum. Is it an Enum that implements the IProperties interface?", e);
    }
    return "{}";
}

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