pulsar-client-admin/src/main/java/org/apache/pulsar/client/admin/internal/LookupImpl.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.pulsar.client.admin.internal;

import javax.ws.rs.ClientErrorException;
import javax.ws.rs.client.WebTarget;

import org.apache.pulsar.client.admin.Lookup;
import org.apache.pulsar.client.admin.PulsarAdminException;
import org.apache.pulsar.client.api.Authentication;
import org.apache.pulsar.common.lookup.data.LookupData;
import org.apache.pulsar.common.naming.DestinationName;

public class LookupImpl extends BaseResource implements Lookup {

    private final WebTarget v2lookup;
    private final boolean useTls;

    public LookupImpl(WebTarget web, Authentication auth, boolean useTls) {
        super(auth);
        this.useTls = useTls;
        v2lookup = web.path("/lookup/v2");
    }

    private PulsarAdminException getLookupApiException(Exception e) {
        if (e instanceof ClientErrorException) {
            return new PulsarAdminException((ClientErrorException) e, e.getMessage());
        } else {
            return getApiException(e);
        }
    }

    @Override
    public String lookupDestination(String destination) throws PulsarAdminException {
        try {
            DestinationName destName = DestinationName.get(destination);
            return doDestinationLookup(v2lookup.path("/destination"), destName);
        } catch (Exception e) {
            throw getLookupApiException(e);
        }
    }

    @Override
    public String getBundleRange(String destination) throws PulsarAdminException {
        try {
            DestinationName destName = DestinationName.get(destination);
            return request(v2lookup.path("/destination").path(destName.getLookupName()).path("bundle")).get(String.class);
        } catch (Exception e) {
            throw getLookupApiException(e);
        }
    }

    private String doDestinationLookup(WebTarget lookupResource, DestinationName destName) throws PulsarAdminException {
        LookupData lookupData = request(lookupResource.path(destName.getLookupName())).get(LookupData.class);
        if (useTls) {
            return lookupData.getBrokerUrlTls();
        } else {
            return lookupData.getBrokerUrl();
        }
    }

}