com.infinities.skyport.openstack.SkyportNovaOpenStack.java Source code

Introduction

Here is the source code for com.infinities.skyport.openstack.SkyportNovaOpenStack.java

Source

/*******************************************************************************
 * Copyright 2015 InfinitiesSoft Solutions 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.infinities.skyport.openstack;

import java.util.Collections;

import javax.annotation.Nonnull;

import org.apache.http.HttpStatus;
import org.dasein.cloud.CloudErrorType;
import org.dasein.cloud.CloudException;
import org.dasein.cloud.ContextRequirements;
import org.dasein.cloud.InternalException;
import org.dasein.cloud.ProviderContext;
import org.dasein.cloud.openstack.nova.os.AuthenticationContext;
import org.dasein.cloud.openstack.nova.os.NovaException;
import org.dasein.cloud.openstack.nova.os.NovaMethod;
import org.dasein.cloud.openstack.nova.os.NovaOpenStack;
import org.dasein.cloud.util.APITrace;
import org.dasein.cloud.util.Cache;
import org.dasein.cloud.util.CacheLevel;
import org.dasein.util.uom.time.Day;
import org.dasein.util.uom.time.TimePeriod;

import com.infinities.skyport.openstack.nova.os.SkyportNovaMethod;

/**
 * This is a customized version of
 * org.dasein.cloud.openstack.nova.os.NovaOpenStack.
 * <p>
 * Created by Pohsun Huang: 12/23/15 10:57 AM
 * </p>
 * 
 * @author Pohsun Huang
 * @version 2015.12 initial version
 * @since 2015.12
 */
public class SkyportNovaOpenStack extends NovaOpenStack {

    @Override
    public synchronized @Nonnull AuthenticationContext getAuthenticationContext()
            throws CloudException, InternalException {
        APITrace.begin(this, "Cloud.getAuthenticationContext");
        try {
            Cache<AuthenticationContext> cache = Cache.getInstance(this, "authenticationContext",
                    AuthenticationContext.class, CacheLevel.REGION_ACCOUNT, new TimePeriod<Day>(1, TimePeriod.DAY));
            ProviderContext ctx = getContext();

            if (ctx == null) {
                throw new CloudException("No context was set for this request");
            }
            Iterable<AuthenticationContext> current = cache.get(ctx);
            AuthenticationContext authenticationContext = null;

            NovaMethod method = new SkyportNovaMethod(this);

            if (current != null) {
                authenticationContext = current.iterator().next();
            } else {
                try {
                    authenticationContext = method.authenticate();
                } finally {
                    if (authenticationContext == null) {
                        NovaException.ExceptionItems items = new NovaException.ExceptionItems();

                        items.code = HttpStatus.SC_UNAUTHORIZED;
                        items.type = CloudErrorType.AUTHENTICATION;
                        items.message = "unauthorized";
                        items.details = "The API keys failed to authenticate with the specified endpoint.";
                        throw new NovaException(items);
                    }
                    cache.put(ctx, Collections.singletonList(authenticationContext));
                }
            }
            return authenticationContext;
        } finally {
            APITrace.end();
        }
    }

    @Override
    public @Nonnull ContextRequirements getContextRequirements() {
        return new ContextRequirements(
                new ContextRequirements.Field("apiKey", "The API Keypair", ContextRequirements.FieldType.KEYPAIR,
                        ContextRequirements.Field.ACCESS_KEYS, true),
                new ContextRequirements.Field("urlType", "The API URL Type: public or internal(default:public)",
                        ContextRequirements.FieldType.TEXT, false));
    }
}