com.opsmatters.newrelic.api.NewRelicClient Maven / Gradle / Ivy
/*
* Copyright 2018 Gerald Curley
*
* 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.opsmatters.newrelic.api;
import java.util.logging.Logger;
import javax.ws.rs.client.Client;
import com.opsmatters.newrelic.api.services.HttpContext;
import com.opsmatters.newrelic.httpclient.HttpClientProvider;
/**
* Client used to invoke New Relic operations using the REST API.
*
* @author Gerald Curley (opsmatters)
*/
public abstract class NewRelicClient
{
private static final Logger logger = Logger.getLogger(NewRelicClient.class.getName());
/**
* The default port for New Relic.
*/
public static final int DEFAULT_PORT = 443;
private String hostname = "";
private int port = DEFAULT_PORT;
protected HttpContext httpContext;
protected HttpClientProvider provider;
private boolean handleErrors = true;
/**
* Default constructor.
*/
public NewRelicClient()
{
}
/**
* Constructor that takes a hostname, port and provider.
* @param hostname The hostname of the server
* @param port The port of the server
* @param provider The HTTP client provider
*/
public NewRelicClient(String hostname, int port, HttpClientProvider provider)
{
this.hostname = hostname;
this.port = port;
this.provider = provider;
}
/**
* Called after setting configuration properties.
* @return This object
*/
public NewRelicClient initialize()
{
Client client = provider.getClient();
String protocol = provider.useSsl() ? "https" : "http";
httpContext = new HttpContext(client, protocol, hostname, port);
httpContext.setUriPrefix(getUriPrefix());
httpContext.setThrowExceptions(handleErrors);
String className = getClass().getName();
logger.info(className.substring(className.lastIndexOf(".")+1)+" initialized");
return this;
}
/**
* Sets the HTTP client provider.
* @param provider The interface for the underlying Jersey client provider
*/
public void setHttpClientProvider(HttpClientProvider provider)
{
this.provider = provider;
}
/**
* Sets the name of the host to connect to.
* @param hostname The name of the host
*/
public void setHostname(String hostname)
{
this.hostname = hostname;
}
/**
* Sets the port of the host to connect to.
*
* The default port is 443.
* @param port The port of the host
*/
public void setPort(int port)
{
this.port = port;
}
/**
* Returns the context used to make calls and deserialize payloads.
* @return The HTTP context
*/
public HttpContext getHttpContext()
{
return this.httpContext;
}
/**
* Set to true if errors should be handled rather than ignored.
* @param b true if errors should be handled
*/
public void setHandleErrors(boolean b)
{
handleErrors = b;
}
/**
* Returns true if errors should be handled rather than ignored.
* @return true if errors should be handled
*/
public boolean handleErrors()
{
return handleErrors;
}
/**
* Returns the uri prefix for resources used by the client.
*
* Defaults to an empty prefix. Where used, should always start with a "/".
* @return The uri prefix for the client
*/
public String getUriPrefix()
{
return "";
}
/**
* Initialise the HTTP client provider and context.
*/
protected void checkInitialize()
{
if(httpContext == null)
initialize();
}
}