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/*
 * Licensed to the University Corporation for Advanced Internet Development, 
 * Inc. (UCAID) under one or more contributor license agreements.  See the 
 * NOTICE file distributed with this work for additional information regarding
 * copyright ownership. The UCAID licenses this file to You 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.opensaml.profile.logic;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;

import net.shibboleth.utilities.java.support.annotation.constraint.NotEmpty;
import net.shibboleth.utilities.java.support.logic.Constraint;
import net.shibboleth.utilities.java.support.primitive.StringSupport;

import org.opensaml.profile.context.ProfileRequestContext;

import com.google.common.base.Predicate;

/**
 * A predicate implementation that tests whether a profile request's profile ID matches an expected value.
 */
public class ProfileIdPredicate implements Predicate {

    /** Profile ID to test for. */
    @Nonnull @NotEmpty private final String profileId;
    
    /**
     * Constructor.
     *
     * @param id profile ID to test for
     */
    public ProfileIdPredicate(@Nonnull @NotEmpty final String id) {
        profileId = Constraint.isNotNull(StringSupport.trimOrNull(id), "Profile ID cannot be null or empty");
    }
    
    /** {@inheritDoc} */
    @Override
    public boolean apply(@Nullable final ProfileRequestContext input) {
        return input != null && profileId.equals(input.getProfileId());
    }
    
}