io.werval.modules.json.JacksonJSON.java Source code

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Here is the source code for io.werval.modules.json.JacksonJSON.java

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/*
 * Copyright (c) 2014 the original author or authors
 *
 * 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 io.werval.modules.json;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import com.fasterxml.jackson.databind.util.JSONPObject;
import java.io.IOException;
import java.io.UncheckedIOException;

import static io.werval.util.Charsets.UTF_8;

/**
 * Jackson JSON.
 */
public class JacksonJSON implements JSON {
    private final ObjectMapper mapper;

    public JacksonJSON(ObjectMapper mapper) {
        this.mapper = mapper;
    }

    @Override
    public ObjectMapper mapper() {
        return mapper;
    }

    @Override
    public byte[] toJSON(Object object) {
        try {
            return mapper.writeValueAsBytes(object);
        } catch (JsonProcessingException ex) {
            throw new JsonPluginException(ex);
        }
    }

    @Override
    public byte[] toJSON(Object object, Class<?> jsonView) {
        try {
            return mapper.writerWithView(jsonView).writeValueAsBytes(object);
        } catch (JsonProcessingException ex) {
            throw new JsonPluginException(ex);
        }
    }

    @Override
    public String toJSONString(Object object) {
        return new String(toJSON(object), UTF_8);
    }

    @Override
    public String toJSONString(Object object, Class<?> jsonView) {
        return new String(toJSON(object, jsonView), UTF_8);
    }

    @Override
    public JsonNode toNode(Object object) {
        try {
            return mapper.readTree(mapper.writer().writeValueAsBytes(object));
        } catch (JsonProcessingException ex) {
            throw new JsonPluginException(ex);
        } catch (IOException ex) {
            throw new UncheckedIOException(ex);
        }
    }

    @Override
    public JsonNode toNode(Object object, Class<?> jsonView) {
        try {
            return mapper.readTree(mapper.writerWithView(jsonView).writeValueAsBytes(object));
        } catch (JsonProcessingException ex) {
            throw new JsonPluginException(ex);
        } catch (IOException ex) {
            throw new UncheckedIOException(ex);
        }
    }

    @Override
    public JsonNode fromJSON(byte[] json) {
        try {
            return mapper.readTree(json);
        } catch (JsonProcessingException ex) {
            throw new JsonPluginException(ex);
        } catch (IOException ex) {
            throw new UncheckedIOException(ex);
        }
    }

    @Override
    public JsonNode fromJSON(String json) {
        return fromJSON(json.getBytes(UTF_8));
    }

    @Override
    public <T> T fromJSON(Class<T> type, byte[] json) {
        try {
            return mapper.readValue(json, type);
        } catch (JsonProcessingException ex) {
            throw new JsonPluginException(ex);
        } catch (IOException ex) {
            throw new UncheckedIOException(ex);
        }
    }

    @Override
    public <T> T fromJSON(Class<T> type, String json) {
        return fromJSON(type, json.getBytes(UTF_8));
    }

    @Override
    public <T> T fromNode(Class<T> type, JsonNode node) {
        try {
            return mapper.treeToValue(node, type);
        } catch (JsonProcessingException ex) {
            throw new JsonPluginException(ex);
        }
    }

    @Override
    public <T> T updateFromJSON(T object, byte[] json) {
        try {
            return mapper.readerForUpdating(object).readValue(json);
        } catch (JsonProcessingException ex) {
            throw new JsonPluginException(ex);
        } catch (IOException ex) {
            throw new UncheckedIOException(ex);
        }
    }

    @Override
    public <T> T updateFromJSON(T object, String json) {
        return updateFromJSON(object, json.getBytes(UTF_8));
    }

    @Override
    public ObjectNode newObject() {
        return mapper.createObjectNode();
    }

    @Override
    public ArrayNode newArray() {
        return mapper.createArrayNode();
    }

    @Override
    public byte[] toJSONP(Object object) {
        return toJSONPString(object).getBytes(UTF_8);
    }

    @Override
    public byte[] toJSONP(Object object, Class<?> jsonView) {
        return toJSONPString(object, jsonView).getBytes(UTF_8);
    }

    @Override
    public byte[] toJSONP(String callbackFunctionName, Object object) {
        return toJSONPString(callbackFunctionName, object).getBytes(UTF_8);
    }

    @Override
    public byte[] toJSONP(String callbackFunctionName, Object object, Class<?> jsonView) {
        return toJSONPString(callbackFunctionName, object, jsonView).getBytes(UTF_8);
    }

    @Override
    public String toJSONPString(Object object) {
        return toJSONPString(DEFAULT_JSONP_CALLBACK, object);
    }

    @Override
    public String toJSONPString(String callbackFunctionName, Object object) {
        try {
            return mapper.writeValueAsString(new JSONPObject(callbackFunctionName, object));
        } catch (JsonProcessingException ex) {
            throw new JsonPluginException(ex);
        }
    }

    @Override
    public String toJSONPString(Object object, Class<?> jsonView) {
        return toJSONPString(DEFAULT_JSONP_CALLBACK, object, jsonView);
    }

    @Override
    public String toJSONPString(String callbackFunctionName, Object object, Class<?> jsonView) {
        try {
            return mapper.writeValueAsString(new JSONPObject(callbackFunctionName, toNode(object, jsonView)));
        } catch (JsonProcessingException ex) {
            throw new JsonPluginException(ex);
        }
    }
}