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

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

Source

/* 
  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.util.HashSet;
import java.util.Iterator;
import java.util.List;

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

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;

public class RemoveChainsYMLAction extends AbstractYMLConfigurationAction {

    private List<String> chains;

    public RemoveChainsYMLAction(List<String> chains, YAMLConfigurationProvider provider, boolean recursive) {
        super(provider, recursive);
        this.chains = chains;
    }

    @Override
    public void doAction(JsonNode node) throws Exception {
        HashSet<String> chainsSet = new HashSet<String>(chains);
        ArrayNode chainsList = null;
        ObjectMapper mapper = provider.getObjectMapper();

        if (node.has("chains")) {
            JsonNode aux = node.get("chains");
            if (aux.isArray()) {
                chainsList = (ArrayNode) node.get("chains");
                Iterator<JsonNode> it = chainsList.iterator();
                ArrayNode newChainsList = new ArrayNode(mapper.getNodeFactory());
                while (it.hasNext()) {
                    JsonNode next = it.next();
                    if (next.isObject()) {
                        String type = next.get("name").asText();
                        if (!chainsSet.contains(type)) {
                            newChainsList.add(next);
                        }
                    }
                }
                ObjectNode oNode = (ObjectNode) node;
                if (newChainsList.size() > 0) {
                    oNode.set("chains", newChainsList);
                } else {
                    oNode.remove("chains");
                }
                provider.write(node);
            }
        } else if (node.has("transformations") && chainsSet.contains("default")) {
            ObjectNode oNode = (ObjectNode) node;
            oNode.remove("transformations");
            provider.write(node);
        }

    }

    @Override
    public AbstractYMLConfigurationAction clone(ConfigurationProvider provider, boolean recursive) {
        return new RemoveChainsYMLAction(chains, (YAMLConfigurationProvider) provider, recursive);
    }

}