org.springframework.data.mongodb.config.ServerAddressPropertyEditor.java Source code

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Here is the source code for org.springframework.data.mongodb.config.ServerAddressPropertyEditor.java

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/*
 * Copyright 2011 the original author or authors.
 *
 * 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 org.springframework.data.mongodb.config;

import java.beans.PropertyEditorSupport;
import java.net.UnknownHostException;
import java.util.HashSet;
import java.util.Set;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.util.StringUtils;

import com.mongodb.ServerAddress;

/**
 * Parse a {@link String} to a {@link ServerAddress} array. The format is host1:port1,host2:port2,host3:port3.
 * 
 * @author Mark Pollack
 * @author Oliver Gierke
 */
public class ServerAddressPropertyEditor extends PropertyEditorSupport {

    private static final Log LOG = LogFactory.getLog(ServerAddressPropertyEditor.class);

    /*
     * (non-Javadoc)
     * @see java.beans.PropertyEditorSupport#setAsText(java.lang.String)
     */
    @Override
    public void setAsText(String replicaSetString) {

        String[] replicaSetStringArray = StringUtils.commaDelimitedListToStringArray(replicaSetString);
        Set<ServerAddress> serverAddresses = new HashSet<ServerAddress>(replicaSetStringArray.length);

        for (String element : replicaSetStringArray) {

            ServerAddress address = parseServerAddress(element);

            if (address != null) {
                serverAddresses.add(address);
            }
        }

        if (serverAddresses.isEmpty()) {
            throw new IllegalArgumentException(
                    "Could not resolve at least one server of the replica set configuration! Validate your config!");
        }

        setValue(serverAddresses.toArray(new ServerAddress[serverAddresses.size()]));
    }

    /**
     * Parses the given source into a {@link ServerAddress}.
     * 
     * @param source
     * @return the
     */
    private ServerAddress parseServerAddress(String source) {

        String[] hostAndPort = StringUtils.delimitedListToStringArray(source.trim(), ":");

        if (!StringUtils.hasText(source) || hostAndPort.length > 2) {
            LOG.warn(String.format("Could not parse address source '%s'. Check your replica set configuration!",
                    source));
            return null;
        }

        try {
            return hostAndPort.length == 1 ? new ServerAddress(hostAndPort[0])
                    : new ServerAddress(hostAndPort[0], Integer.parseInt(hostAndPort[1]));
        } catch (UnknownHostException e) {
            LOG.warn(String.format("Could not parse host '%s'. Check your replica set configuration!",
                    hostAndPort[0]));
        } catch (NumberFormatException e) {
            LOG.warn(String.format("Could not parse port '%s'. Check your replica set configuration!",
                    hostAndPort[1]));
        }

        return null;
    }
}