com.diffplug.gradle.ConfigMisc.java Source code

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Here is the source code for com.diffplug.gradle.ConfigMisc.java

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/*
 * Copyright 2016 DiffPlug
 *
 * 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.diffplug.gradle;

import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Properties;
import java.util.function.Supplier;

import org.apache.commons.io.output.ByteArrayOutputStream;
import org.gradle.api.Action;

import groovy.util.Node;
import groovy.xml.XmlUtil;

import com.diffplug.common.base.Errors;

/** Utilities for creating configuration content. */
public class ConfigMisc {
    /** Creates an XML string from a groovy.util.Node. */
    public static Supplier<byte[]> xml(Supplier<Node> node) {
        return () -> {
            Node root = node.get();
            return XmlUtil.serialize(root).getBytes(StandardCharsets.UTF_8);
        };
    }

    /** Creates an XML string from a groovy.util.Node. */
    public static Supplier<byte[]> props(Action<Map<String, String>> mapPopulate) {
        return () -> {
            Map<String, String> map = new LinkedHashMap<>();
            mapPopulate.execute(map);
            return props(map);
        };
    }

    /** Creates an XML string from a groovy.util.Node. */
    public static byte[] props(Map<String, String> map) {
        Properties properties = new Properties();
        map.forEach((key, value) -> properties.put(key, value));
        try (ByteArrayOutputStream output = new ByteArrayOutputStream()) {
            Errors.rethrow().run(() -> properties.store(output, ""));
            return output.toByteArray();
        } catch (IOException e) {
            throw Errors.asRuntime(e);
        }
    }
}