/*
 * The contents of this file are subject to the terms of the Common Development and
 * Distribution License (the License). You may not use this file except in compliance with the
 * License.
 *
 * You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
 * specific language governing permission and limitations under the License.
 *
 * When distributing Covered Software, include this CDDL Header Notice in each file and include
 * the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
 * Header, with the fields enclosed by brackets [] replaced by your own identifying
 * information: "Portions Copyright [year] [name of copyright owner]".
 *
 * Copyright 2013 ForgeRock AS.
 */
package org.forgerock.opendj.grizzly;

import static org.fest.assertions.Assertions.assertThat;

import org.forgerock.opendj.ldap.SdkTestCase;
import org.glassfish.grizzly.StandaloneProcessor;
import org.glassfish.grizzly.filterchain.BaseFilter;
import org.glassfish.grizzly.filterchain.FilterChain;
import org.glassfish.grizzly.filterchain.FilterChainBuilder;
import org.glassfish.grizzly.filterchain.TransportFilter;
import org.glassfish.grizzly.ssl.SSLFilter;
import org.testng.annotations.Test;

@SuppressWarnings("javadoc")
public class GrizzlyUtilsTestCase extends SdkTestCase {

    private static final class DummyLDAPFilter extends BaseFilter { // only need type
    }

    private static final class FilterOne extends BaseFilter { // only need type
    }

    private static final class DummySSLFilter extends SSLFilter { // only need type
    }

    /**
     * Default filter chain contains a transport filter and a ldap filter.
     */
    private FilterChain getDefaultFilterChain() {
        return FilterChainBuilder.stateless().
                add(new TransportFilter()).add(new DummyLDAPFilter()).build();
    }

    @Test
    public void addFilterToChain() throws Exception {
        final FilterChain chain = GrizzlyUtils.addFilterToChain(new FilterOne(), getDefaultFilterChain());

        assertThat(chain.indexOfType(TransportFilter.class)).isEqualTo(0);
        assertThat(chain.indexOfType(FilterOne.class)).isEqualTo(1);
        assertThat(chain.indexOfType(DummyLDAPFilter.class)).isEqualTo(2);
        assertThat(chain.size()).isEqualTo(3);
    }

    @Test
    public void addSSLFilterToChain() throws Exception {
        final FilterChain chain = GrizzlyUtils.addFilterToChain(new DummySSLFilter(), getDefaultFilterChain());

        assertThat(chain.indexOfType(TransportFilter.class)).isEqualTo(0);
        assertThat(chain.indexOfType(DummySSLFilter.class)).isEqualTo(1);
        assertThat(chain.indexOfType(DummyLDAPFilter.class)).isEqualTo(2);
        assertThat(chain.size()).isEqualTo(3);
    }

    @Test
    public void addConnectionSecurityLayerAndSSLFilterToChain() throws Exception {
        final FilterChain chain = GrizzlyUtils.addFilterToChain(new ConnectionSecurityLayerFilter(null, null),
                getDefaultFilterChain());
        final FilterChain sslChain = GrizzlyUtils.addFilterToChain(new DummySSLFilter(), chain);

        // SSLFilter must be beneath ConnectionSecurityLayerFilter
        assertThat(sslChain.indexOfType(TransportFilter.class)).isEqualTo(0);
        assertThat(sslChain.indexOfType(DummySSLFilter.class)).isEqualTo(1);
        assertThat(sslChain.indexOfType(ConnectionSecurityLayerFilter.class)).isEqualTo(2);
        assertThat(sslChain.indexOfType(DummyLDAPFilter.class)).isEqualTo(3);
        assertThat(sslChain.size()).isEqualTo(4);
    }

    @Test
    public void buildFilterChainFromFilterChainProcessor() throws Exception {
        final FilterChain chain = GrizzlyUtils.buildFilterChain(
                FilterChainBuilder.stateless().add(new TransportFilter()).build(), new DummyLDAPFilter());

        assertThat(chain.indexOfType(TransportFilter.class)).isEqualTo(0);
        assertThat(chain.indexOfType(DummyLDAPFilter.class)).isEqualTo(1);
        assertThat(chain.size()).isEqualTo(2);
    }

    @Test
    public void buildFilterChainFromNonFilterChainProcessor() throws Exception {
        final FilterChain chain = GrizzlyUtils.buildFilterChain(new StandaloneProcessor(), new DummyLDAPFilter());

        assertThat(chain.indexOfType(TransportFilter.class)).isEqualTo(0);
        assertThat(chain.indexOfType(DummyLDAPFilter.class)).isEqualTo(1);
        assertThat(chain.size()).isEqualTo(2);
    }


}