MailSendExternalResourceAnalyzer.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.mail;

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.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;
import com.springsource.insight.util.StringUtil;

public class MailSendExternalResourceAnalyzer extends AbstractExternalResourceAnalyzer {
    public static final String RESOURCE_TYPE = ExternalResourceType.EMAIL.name();
    private static final MailSendExternalResourceAnalyzer INSTANCE = new MailSendExternalResourceAnalyzer();

    private MailSendExternalResourceAnalyzer() {
        super(MailDefinitions.SEND_OPERATION);
    }

    public static final MailSendExternalResourceAnalyzer getInstance() {
        return INSTANCE;
    }

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

        List<ExternalResourceDescriptor> mailDescriptors = new ArrayList<ExternalResourceDescriptor>(mailFrames.size());
        for (Frame mailFrame : mailFrames) {
            Operation op = mailFrame.getOperation();

            String host = op.get(MailDefinitions.SEND_HOST, String.class);
            if (StringUtil.isEmpty(host)) {
                continue;    // can happen if generated via Spring's JavaMailSender interface
            }

            Number portProperty = op.get(MailDefinitions.SEND_PORT, Number.class);
            int port = portProperty == null ? -1 : portProperty.intValue();
            String protocol = op.get(MailDefinitions.SEND_PROTOCOL, String.class, "SMTP");
            String label = protocol.toUpperCase() + ":" + host + ((port > 0) ? (":" + port) : "");
            String hashString = MD5NameGenerator.getName(label);
            String color = colorManager.getColor(op);

            ExternalResourceDescriptor descriptor = new ExternalResourceDescriptor(
                    mailFrame, protocol + ":" + hashString, label, RESOURCE_TYPE, protocol, host, port, color, false);
            mailDescriptors.add(descriptor);
        }

        return mailDescriptors;
    }

}