AbsCassandraExternalResourceAnalyzer.java

/**
 * Copyright (c) 2009-2011 VMware, Inc. All Rights Reserved.
 *
 * 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 com.springsource.insight.plugin.cassandra;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;

import com.springsource.insight.intercept.operation.Operation;
import com.springsource.insight.intercept.operation.OperationType;
import com.springsource.insight.intercept.topology.AbstractExternalResourceAnalyzer;
import com.springsource.insight.intercept.topology.ExternalResourceDescriptor;
import com.springsource.insight.intercept.topology.ExternalResourceType;
import com.springsource.insight.intercept.topology.MD5NameGenerator;
import com.springsource.insight.intercept.trace.Frame;
import com.springsource.insight.intercept.trace.Trace;
import com.springsource.insight.util.ListUtil;

public abstract class AbsCassandraExternalResourceAnalyzer extends AbstractExternalResourceAnalyzer {
    public AbsCassandraExternalResourceAnalyzer(OperationType type) {
        super(type);
    }

    public Collection<ExternalResourceDescriptor> locateExternalResourceName(Trace trace, Collection<Frame> frames) {
        if (ListUtil.size(frames) <= 0) {
            return Collections.emptyList();
        }

        List<ExternalResourceDescriptor> queueDescriptors = new ArrayList<ExternalResourceDescriptor>(frames.size());
        for (Frame cacheFrame : frames) {
            Operation op = cacheFrame.getOperation();
            String server = op.get("server", String.class, "");

            int port = 0;
            String host = server;
            int indx = server.lastIndexOf(":");
            if (indx > 0) {
                host = server.substring(0, indx);
                try {
                    port = Integer.parseInt(server.substring(indx + 1));
                } catch (Exception e) {
                    // invalid port
                }
            }

            String hashString = MD5NameGenerator.getName(server);
            String color = colorManager.getColor(op);

            ExternalResourceDescriptor descriptor =
                    new ExternalResourceDescriptor(cacheFrame, "server:" + hashString, server,
                            ExternalResourceType.DATABASE.name(), "Cassandra",
                            host, port, color, false);
            queueDescriptors.add(descriptor);
        }

        return queueDescriptors;
    }
}