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

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Here is the source code for org.walkmod.conf.providers.yml.RemoveProvidersYMLAction.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.util.HashSet;
import java.util.Iterator;
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;
import com.fasterxml.jackson.databind.node.ObjectNode;

public class RemoveProvidersYMLAction extends AbstractYMLConfigurationAction {

    private List<String> providers;

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

    @Override
    public void doAction(JsonNode node) throws Exception {
        HashSet<String> providerSet = new HashSet<String>();
        for (String elem : providers) {
            String[] partsType = elem.split(":");
            if (partsType.length == 1) {
                elem = "org.walkmod:walkmod-" + elem + "-plugin:" + elem;
            }
            if (partsType.length != 3 && partsType.length != 1) {
                throw new TransformerException("Invalid conf-provider");
            }
            providerSet.add(elem);
        }
        if (node.has("conf-providers")) {
            JsonNode aux = node.get("conf-providers");
            if (aux.isArray()) {
                ArrayNode providersList = (ArrayNode) node.get("conf-providers");
                Iterator<JsonNode> it = providersList.iterator();
                ArrayNode newProvidersList = new ArrayNode(provider.getObjectMapper().getNodeFactory());
                while (it.hasNext()) {
                    JsonNode next = it.next();
                    if (next.isObject()) {
                        String type = next.get("type").asText();
                        String[] parts = type.split(":");
                        if (parts.length == 1) {
                            type = "org.walkmod:walkmod-" + type + "-plugin:" + type;
                        } else if (parts.length != 3) {
                            throw new TransformerException("Invalid conf-provider");
                        }
                        if (!providerSet.contains(type)) {
                            newProvidersList.add(next);
                        }
                    }
                }
                ObjectNode oNode = (ObjectNode) node;
                if (newProvidersList.size() > 0) {
                    oNode.set("conf-providers", newProvidersList);
                } else {
                    oNode.remove("conf-providers");
                }
                provider.write(node);
            }
        }

    }

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

}