org.openqa.selenium.json.Json.java Source code

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Here is the source code for org.openqa.selenium.json.Json.java

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// Licensed to the Software Freedom Conservancy (SFC) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The SFC licenses this file
// to you 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 org.openqa.selenium.json;

import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;
import java.io.StringWriter;
import java.io.UncheckedIOException;
import java.io.Writer;
import java.lang.reflect.Type;
import java.util.List;
import java.util.Map;

public class Json {
    public static final Type LIST_OF_MAPS_TYPE = new TypeToken<List<Map<String, Object>>>() {
    }.getType();
    public static final Type MAP_TYPE = new TypeToken<Map<String, Object>>() {
    }.getType();
    public static final Type OBJECT_TYPE = new TypeToken<Object>() {
    }.getType();

    private final JsonTypeCoercer fromJson = new JsonTypeCoercer();

    public String toJson(Object toConvert) {
        try (Writer writer = new StringWriter(); JsonOutput jsonOutput = newOutput(writer)) {
            jsonOutput.write(toConvert);
            return writer.toString();
        } catch (IOException e) {
            throw new JsonException(e);
        }
    }

    public <T> T toType(String source, Type typeOfT) {
        return toType(source, typeOfT, PropertySetting.BY_NAME);
    }

    public <T> T toType(String source, Type typeOfT, PropertySetting setter) {
        try (StringReader reader = new StringReader(source)) {
            return toType(reader, typeOfT, setter);
        }
    }

    public <T> T toType(Reader source, Type typeOfT) {
        return toType(source, typeOfT, PropertySetting.BY_NAME);
    }

    public <T> T toType(Reader source, Type typeOfT, PropertySetting setter) {
        if (setter == null) {
            throw new JsonException("Mechanism for setting properties must be set");
        }

        try (JsonInput json = newInput(source)) {
            return fromJson.coerce(json, typeOfT, setter);
        }
    }

    public JsonInput newInput(Reader from) throws UncheckedIOException {
        return new JsonInput(from, fromJson, PropertySetting.BY_NAME);
    }

    public JsonOutput newOutput(Appendable to) throws UncheckedIOException {
        return new JsonOutput(to);
    }
}