TryElement.java

/* 
 * 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.esigate.extension.parallelesi;

import java.io.IOException;
import java.util.concurrent.Future;

import org.esigate.HttpErrorPage;
import org.esigate.parser.future.FutureElementType;
import org.esigate.parser.future.FutureParserContext;

class TryElement extends BaseElement {

    public static final FutureElementType TYPE = new BaseElementType("<esi:try", "</esi:try") {
        @Override
        public TryElement newInstance() {
            return new TryElement();
        }

    };

    private boolean hasErrors;
    private boolean exceptProcessed;
    private int errorCode;
    private boolean write = false;

    TryElement() {
    }

    @Override
    protected boolean parseTag(Tag tag, FutureParserContext ctx) {
        this.hasErrors = false;
        this.errorCode = 0;
        return true;
    }

    @Override
    public void characters(Future<CharSequence> csq) throws IOException {
        if (write) {
            super.characters(csq);
        }
    }

    public boolean hasErrors() {
        return hasErrors;
    }

    public int getErrorCode() {
        return errorCode;
    }

    public boolean exceptProcessed() {
        return exceptProcessed;
    }

    public void setExceptProcessed(boolean exceptProcessed) {
        this.exceptProcessed = exceptProcessed;
    }

    @Override
    public boolean onError(Exception e, FutureParserContext ctx) {
        hasErrors = true;
        if (e instanceof HttpErrorPage) {
            errorCode = ((HttpErrorPage) e).getHttpResponse().getStatusLine().getStatusCode();
        }
        return true;
    }

    public void setWrite(boolean write) {
        this.write = write;
    }

    @Override
    public void onTagEnd(String tag, FutureParserContext ctx) {
        // Nothing to do
    }

}