com.boundary.sdk.snmp.metric.HostLists.java Source code

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Here is the source code for com.boundary.sdk.snmp.metric.HostLists.java

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// Copyright 2014-2015 Boundary, 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 com.boundary.sdk.snmp.metric;

import java.io.File;
import java.io.IOException;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.ArrayList;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;

import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.ObjectMapper;

/**
 * List of hosts to be polled for SNMP metrics
 *
 */
public class HostLists {

    @JsonProperty("host-lists")
    private List<HostListEntry> hostLists;

    public HostLists() {
        this.hostLists = new ArrayList<HostListEntry>();
    }

    public List<HostListEntry> getHostLists() {
        return hostLists;
    }

    public void setHostList(List<HostListEntry> hostLists) {
        this.hostLists = hostLists;
    }

    public List<Host> getHosts(List<Long> ids) {
        Set<Host> hosts = new LinkedHashSet<Host>();

        for (HostListEntry entry : hostLists) {
            if (ids.contains(entry.getId())) {
                for (Host host : entry.getHosts()) {
                    if (host.isEnabled()) {
                        if (host.getPort() == Host.UKNOWN_PORT) {
                            host.setPort(entry.getPort());
                        }
                        if (host.getCommunityRead() == null) {
                            host.setCommunityRead(entry.getCommunityRead());
                        }
                        hosts.add(host);
                    }
                }
            }
        }

        List<Host> list = new ArrayList<Host>();
        list.addAll(hosts);
        return list;
    }

    public static HostLists load(String resource) throws URISyntaxException {
        HostLists instance = new HostLists();

        ClassLoader classLoader = instance.getClass().getClassLoader();
        URL url = classLoader.getResource(resource);
        File file = new File(url.toURI());

        ObjectMapper mapper = new ObjectMapper();

        try {
            instance = mapper.readValue(file, HostLists.class);
        } catch (JsonParseException e) {
            e.printStackTrace();
        } catch (JsonMappingException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return instance;
    }

    @Override
    public String toString() {
        return "HostLists [hostLists=" + hostLists + "]";
    }

}