co.cask.cdap.proto.WorkflowTokenDetail.java Source code

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Here is the source code for co.cask.cdap.proto.WorkflowTokenDetail.java

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/*
 * Copyright  2015 Cask Data, Inc.
 *
 * 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 co.cask.cdap.proto;

import co.cask.cdap.api.workflow.NodeValue;
import co.cask.cdap.api.workflow.Value;
import co.cask.cdap.api.workflow.WorkflowToken;
import com.google.common.collect.ImmutableMap;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * Class to represent {@link WorkflowToken} for a give workflow run.
 */
public class WorkflowTokenDetail {

    private final Map<String, List<NodeValueDetail>> tokenData;

    public WorkflowTokenDetail(Map<String, List<NodeValueDetail>> tokenData) {
        this.tokenData = ImmutableMap.copyOf(tokenData);
    }

    public Map<String, List<NodeValueDetail>> getTokenData() {
        return tokenData;
    }

    /**
     * Constructs a {@link WorkflowTokenDetail} by flattening the {@link Value} from the output of
     * {@link WorkflowToken#getAll(WorkflowToken.Scope)}.
     *
     * @param data the workflow token data to flatten
     * @return {@link WorkflowTokenDetail} from the specified workflow token data
     */
    public static WorkflowTokenDetail of(Map<String, List<NodeValue>> data) {
        Map<String, List<NodeValueDetail>> converted = new HashMap<>();
        for (Map.Entry<String, List<NodeValue>> entry : data.entrySet()) {
            List<NodeValueDetail> convertedList = new ArrayList<>();
            for (NodeValue nodeValue : entry.getValue()) {
                convertedList.add(new NodeValueDetail(nodeValue.getNodeName(), nodeValue.getValue().toString()));
            }
            converted.put(entry.getKey(), convertedList);
        }
        return new WorkflowTokenDetail(converted);
    }

    /**
     * Class to represent node -> value mapping for a given key in a {@link WorkflowToken}.
     */
    public static class NodeValueDetail {
        private final String node;
        private final String value;

        public NodeValueDetail(String node, String value) {
            this.node = node;
            this.value = value;
        }

        public String getNode() {
            return node;
        }

        public String getValue() {
            return value;
        }
    }
}