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Cassandra Test bindings for the TestNG environment.
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/*
 * Copyright (C) 2016 Daniel Anderson.
 *
 * 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.unittested.cassandra.test.testng;

import java.lang.reflect.Method;

import org.unittested.cassandra.test.Keyspace;
import org.unittested.cassandra.test.KeyspaceContainer;
import org.unittested.cassandra.test.TestEnvironmentAdapter;
import org.unittested.cassandra.test.TestSettings;
import org.unittested.cassandra.test.TestSettingsBuilder;
import org.testng.annotations.AfterClass;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.BeforeMethod;
import org.unittested.cassandra.test.annotation.CassandraBean;
import org.unittested.cassandra.test.exception.CassandraTestException;
import org.unittested.cassandra.test.properties.PropertiesPropertyResolver;

import com.datastax.driver.core.Cluster;
import com.datastax.driver.core.Session;

/**
 * Base class for TestNG-based Cassandra Test tests.
 */
public abstract class AbstractTestNGCassandraTest {

    private TestEnvironmentAdapter adapter;

    @CassandraBean
    private Session session;

    @CassandraBean
    private Cluster cluster;

    @CassandraBean
    private Keyspace keyspace;

    @CassandraBean
    private KeyspaceContainer keyspaceContainer;

    public AbstractTestNGCassandraTest() {

    }

    @BeforeClass(alwaysRun = true)
    public void beforeClass() throws Exception {
        this.adapter = createTestEnvironmentAdapter(getClass());

        if (this.adapter == null) {
            throw new CassandraTestException("Failed to create a TestEnvironmentAdapter.");
        }

        this.adapter.onBeforeClass(getClass(), null);
    }

    @BeforeClass(alwaysRun = true, dependsOnMethods = "beforeClass")
    public void prepareTestInstance() throws Exception {
        if (this.adapter != null) {
            this.adapter.onPrepareTestInstance(this, null);
        }
    }

    @AfterClass(alwaysRun = true)
    public void afterClass() throws Exception {
        if (this.adapter != null) {
            this.adapter.onAfterClass(getClass(), null);
            this.adapter = null;
        }
    }

    @BeforeMethod(alwaysRun = true)
    public void beforeMethod(Method testMethod) throws Exception {
        if (this.adapter != null) {
            this.adapter.onBeforeMethod(this, testMethod, null);
        }
    }

    @AfterMethod(alwaysRun = true)
    public void afterMethod(Method testMethod) throws Exception {
        if (this.adapter != null) {
            this.adapter.onAfterMethod(this, testMethod, null);
        }
    }

    protected Cluster getCluster() {
        return this.cluster;
    }

    protected Session getSession() {
        return this.session;
    }

    protected Keyspace getKeyspace() {
        return this.keyspace;
    }

    protected KeyspaceContainer getKeyspaceContainer() {
        return this.keyspaceContainer;
    }

    TestEnvironmentAdapter createTestEnvironmentAdapter(Class testClass) {
        TestSettingsBuilder defaults = new TestSettingsBuilder()
                .withDefaultPropertyResolver(PropertiesPropertyResolver.SYSTEM)
                .withTestClass(testClass);

        return new TestEnvironmentAdapter(createTestSettings(defaults, testClass));
    }

    protected TestSettings createTestSettings(TestSettingsBuilder defaults, Class testClass) {
        return defaults.build();
    }
}