http/base/src/main/java/org/apache/felix/http/base/internal/runtime/dto/ErrorPageDTOBuilder.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF 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.apache.felix.http.base.internal.runtime.dto;

import org.apache.felix.http.base.internal.handler.ServletHandler;
import org.apache.felix.http.base.internal.runtime.ServletInfo;
import org.osgi.service.http.runtime.dto.ErrorPageDTO;
import org.osgi.service.http.runtime.dto.FailedErrorPageDTO;

public final class ErrorPageDTOBuilder extends BaseServletDTOBuilder
{
    /**
     * Build a servlet DTO from a servlet handler
     * @param handler The servlet handler
     * @param reason If reason is -1, a servlet DTO is created, otherwise a failed servlet DTO is returned
     * @return A servlet DTO
     */
    public static ErrorPageDTO build(final ServletHandler handler, final int reason)
    {
        final ErrorPageDTO dto = build(handler.getServletInfo(), reason != -1);

        BaseServletDTOBuilder.fill(dto, handler);

        if ( reason != -1 )
        {
            ((FailedErrorPageDTO)dto).failureReason = reason;
        }

        return dto;
    }

    /**
     * Build a servlet DTO from a servlet info
     * @param info The servlet info
     * @return A servlet DTO
     */
    public static ErrorPageDTO build(final ServletInfo info, final boolean failed)
    {
        final ErrorPageDTO dto = (failed ? new FailedErrorPageDTO() : new ErrorPageDTO());

        BaseServletDTOBuilder.fill(dto, info);

        dto.errorCodes = BuilderConstants.EMPTY_LONG_ARRAY;
        dto.exceptions = BuilderConstants.EMPTY_STRING_ARRAY;

        return dto;
    }
}