org.walkmod.conf.providers.yml.RemoveTransformationYMLAction.java Source code

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Here is the source code for org.walkmod.conf.providers.yml.RemoveTransformationYMLAction.java

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/* 
  Copyright (C) 2013 Raquel Pau and Albert Coroleu.
     
  Walkmod is free software: you can redistribute it and/or modify
  it under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.
     
  Walkmod is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU Lesser General Public License for more details.
     
  You should have received a copy of the GNU Lesser General Public License
  along with Walkmod.  If not, see <http://www.gnu.org/licenses/>.*/
package org.walkmod.conf.providers.yml;

import java.io.File;
import java.io.IOException;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;

import javax.xml.transform.TransformerException;

import org.walkmod.conf.ConfigurationProvider;
import org.walkmod.conf.providers.YAMLConfigurationProvider;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.node.ArrayNode;

public class RemoveTransformationYMLAction extends AbstractYMLConfigurationAction {

    private String chain;
    private List<String> transformations;

    public RemoveTransformationYMLAction(String chain, List<String> transformations,
            YAMLConfigurationProvider provider, boolean recursive) {
        super(provider, recursive);
        this.chain = chain;
        this.transformations = transformations;
    }

    @Override
    public void doAction(JsonNode node) throws Exception {
        HashSet<String> transList = new HashSet<String>(transformations);
        JsonNode transfListNode = null;
        if (chain == null || "".equals(chain)) {
            if (node.has("transformations")) {
                transfListNode = node.get("transformations");

            }
        } else {
            if (node.has("chains")) {
                JsonNode chainsListNode = node.get("chains");
                if (chainsListNode.isArray()) {
                    Iterator<JsonNode> it = chainsListNode.iterator();
                    boolean found = false;
                    while (it.hasNext() && !found) {
                        JsonNode current = it.next();
                        if (current.has("name")) {
                            String name = current.get("name").asText();
                            found = name.equals(chain);

                            if (current.has("transformations")) {
                                transfListNode = current.get("transformations");
                            }
                        }
                    }
                }
            }
        }

        if (transfListNode != null) {
            if (transfListNode.isArray()) {
                ArrayNode transArray = (ArrayNode) transfListNode;
                Iterator<JsonNode> it = transArray.iterator();
                List<Integer> removeIndex = new LinkedList<Integer>();
                int i = 0;
                while (it.hasNext()) {
                    JsonNode transfNode = it.next();
                    if (transfNode.has("type")) {
                        String type = transfNode.get("type").asText();
                        if (transList.contains(type)) {
                            removeIndex.add(i);
                        }
                    }
                    i++;
                }
                for (Integer pos : removeIndex) {
                    transArray.remove(pos);
                }
            }
            provider.write(node);
        }

    }

    @Override
    public AbstractYMLConfigurationAction clone(ConfigurationProvider provider, boolean recursive) {
        return new RemoveTransformationYMLAction(chain, transformations, (YAMLConfigurationProvider) provider,
                recursive);
    }

}