com.effektif.workflow.impl.json.JsonStreamWriter.java Source code

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Here is the source code for com.effektif.workflow.impl.json.JsonStreamWriter.java

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/* Copyright (c) 2014, Effektif GmbH.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License. */
package com.effektif.workflow.impl.json;

import java.io.IOException;
import java.math.BigDecimal;
import java.math.BigInteger;

import com.fasterxml.jackson.core.JsonGenerator;

/**
 * Serialises to JSON using a stream-based JSON representation.
 */
public class JsonStreamWriter extends JsonWriter {

    JsonGenerator jgen;

    public JsonStreamWriter(Mappings mappings, JsonGenerator jgen) {
        super(mappings);
        this.jgen = jgen;
    }

    public void flush() {
        try {
            jgen.flush();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    @Override
    public void objectStart() {
        try {
            jgen.writeStartObject();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    @Override
    public void writeFieldName(String fieldName) {
        try {
            jgen.writeFieldName(fieldName);
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    @Override
    public void objectEnd() {
        try {
            jgen.writeEndObject();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    @Override
    public void arrayEnd() {
        try {
            jgen.writeEndArray();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    @Override
    public void arrayStart() {
        try {
            jgen.writeStartArray();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    @Override
    public void writeNull() {
        try {
            jgen.writeNull();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    @Override
    public void writeString(String s) {
        try {
            jgen.writeString(s);
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    @Override
    public void writeBoolean(Boolean b) {
        try {
            jgen.writeBoolean(b);
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    @Override
    public void writeNumber(Number n) {
        try {
            if (n instanceof Long) {
                jgen.writeNumber((Long) n);
            } else if (n instanceof Integer) {
                jgen.writeNumber((Integer) n);
            } else if (n instanceof Double) {
                jgen.writeNumber((Double) n);
            } else if (n instanceof Float) {
                jgen.writeNumber((Float) n);
            } else if (n instanceof Short) {
                jgen.writeNumber((Short) n);
            } else if (n instanceof BigDecimal) {
                jgen.writeNumber((BigDecimal) n);
            } else if (n instanceof BigInteger) {
                jgen.writeNumber((BigInteger) n);
            } else {
                throw new RuntimeException("Couldn't write number of type " + n.getClass());
            }
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }
}