/*
 * 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 2008 Sun Microsystems, Inc.
 * Portions Copyright 2015-2016 ForgeRock AS.
 */
package org.forgerock.opendj.config.client;

import static com.forgerock.opendj.ldap.config.ConfigMessages.*;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;

import org.forgerock.i18n.LocalizableMessage;
import org.forgerock.i18n.LocalizableMessageBuilder;
import org.forgerock.opendj.config.OperationsException;
import org.forgerock.opendj.config.PropertyException;
import org.forgerock.util.Reject;

/**
 * This exception is thrown when an attempt is made to add or modify a managed
 * object when one or more of its mandatory properties are undefined.
 */
public class MissingMandatoryPropertiesException extends OperationsException {

    /**
     * Serialization ID.
     */
    private static final long serialVersionUID = 6342522125252055588L;

    /** Create the message. */
    private static LocalizableMessage createMessage(Collection<PropertyException> causes) {
        Reject.ifNull(causes);
        Reject.ifFalse(!causes.isEmpty(), "causes should not be empty");

        if (causes.size() == 1) {
            return ERR_MISSING_MANDATORY_PROPERTIES_EXCEPTION_SINGLE.get(causes.iterator().next()
                .getPropertyDefinition().getName());
        } else {
            LocalizableMessageBuilder builder = new LocalizableMessageBuilder();

            boolean isFirst = true;
            for (PropertyException cause : causes) {
                if (!isFirst) {
                    builder.append(", ");
                }
                builder.append(cause.getPropertyDefinition().getName());
                isFirst = false;
            }

            return ERR_MISSING_MANDATORY_PROPERTIES_EXCEPTION_PLURAL.get(builder.toMessage());
        }
    }

    /** The causes of this exception. */
    private final Collection<PropertyException> causes;

    /** Indicates whether the exception occurred during managed object creation. */
    private final boolean isCreate;

    /** The user friendly name of the component that caused this exception. */
    private final LocalizableMessage ufn;

    /**
     * Creates a new missing mandatory properties exception with the provided
     * causes.
     *
     * @param ufn
     *            The user friendly name of the component that caused this
     *            exception.
     * @param causes
     *            The causes of this exception (must be non-<code>null</code>
     *            and non-empty).
     * @param isCreate
     *            Indicates whether the exception occurred during managed object
     *            creation.
     */
    public MissingMandatoryPropertiesException(LocalizableMessage ufn,
        Collection<PropertyException> causes, boolean isCreate) {
        super(createMessage(causes));

        this.causes = new ArrayList<>(causes);
        this.ufn = ufn;
        this.isCreate = isCreate;
    }

    /**
     * Gets the first exception that caused this exception.
     *
     * @return Returns the first exception that caused this exception.
     */
    @Override
    public PropertyException getCause() {
        return causes.iterator().next();
    }

    /**
     * Gets an unmodifiable collection view of the causes of this exception.
     *
     * @return Returns an unmodifiable collection view of the causes of this
     *         exception.
     */
    public Collection<PropertyException> getCauses() {
        return Collections.unmodifiableCollection(causes);
    }

    /**
     * Gets the user friendly name of the component that caused this exception.
     *
     * @return Returns the user friendly name of the component that caused this
     *         exception.
     */
    public LocalizableMessage getUserFriendlyName() {
        return ufn;
    }

    /**
     * Indicates whether or not this exception was thrown during managed object
     * creation or during modification.
     *
     * @return Returns <code>true</code> if this exception was thrown during
     *         managed object creation.
     */
    public boolean isCreate() {
        return isCreate;
    }

}