org.sourcepit.common.maven.util.Xpp3Utils.java Source code

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Here is the source code for org.sourcepit.common.maven.util.Xpp3Utils.java

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/*
 * Copyright 2014 Bernd Vogt and others.
 * 
 * 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 org.sourcepit.common.maven.util;

import org.apache.maven.model.Dependency;
import org.codehaus.plexus.util.xml.Xpp3Dom;
import org.sourcepit.common.constraints.NotNull;

import com.google.common.base.Strings;

public final class Xpp3Utils {
    private Xpp3Utils() {
        super();
    }

    public static void clearChildren(@NotNull Xpp3Dom parent) {
        for (int i = parent.getChildCount() - 1; i >= 0; i--) {
            parent.removeChild(i);
        }
    }

    public static Xpp3Dom toDependencyNode(@NotNull Dependency dependency) {
        final Xpp3Dom dependencyNode = new Xpp3Dom("dependency");
        addDependencyValues(dependencyNode, dependency);
        return dependencyNode;
    }

    public static void addDependencyValues(@NotNull final Xpp3Dom dependencyNode, @NotNull Dependency dependency) {
        String value = dependency.getGroupId();
        if (!Strings.isNullOrEmpty(value)) {
            addValueNode(dependencyNode, "groupId", value);
        }

        value = dependency.getArtifactId();
        if (!Strings.isNullOrEmpty(value)) {
            addValueNode(dependencyNode, "artifactId", value);
        }

        value = dependency.getVersion();
        if (!Strings.isNullOrEmpty(value)) {
            addValueNode(dependencyNode, "version", value);
        }

        value = dependency.getType();
        if (!Strings.isNullOrEmpty(value) && !"jar".equals(value)) {
            addValueNode(dependencyNode, "type", value);
        }

        value = dependency.getClassifier();
        if (!Strings.isNullOrEmpty(value)) {
            addValueNode(dependencyNode, "classifier", value);
        }

        value = dependency.getScope();
        if (!Strings.isNullOrEmpty(value) && !"compile".equals(value)) {
            addValueNode(dependencyNode, "scope", value);
        }

        value = dependency.getSystemPath();
        if (!Strings.isNullOrEmpty(value)) {
            addValueNode(dependencyNode, "systemPath", value);
        }

        value = dependency.getOptional();
        if (!Strings.isNullOrEmpty(value) && !"false".equals(value)) {
            addValueNode(dependencyNode, "optional", value);
        }
    }

    public static void setValueNode(@NotNull Xpp3Dom parent, @NotNull String name, String value) {
        final Xpp3Dom child = parent.getChild(name);
        if (child == null) {
            parent.addChild(newValueNode(name, value));
        } else {
            child.setValue(value);
        }
    }

    public static void addValueNode(@NotNull Xpp3Dom parent, @NotNull String name, String value) {
        parent.addChild(newValueNode(name, value));
    }

    public static Xpp3Dom newValueNode(@NotNull String name, String value) {
        final Xpp3Dom node = new Xpp3Dom(name);
        node.setValue(value);
        return node;
    }
}