de.flapdoodle.logparser.stacktrace.AbstractStackFrame.java Source code

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Here is the source code for de.flapdoodle.logparser.stacktrace.AbstractStackFrame.java

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/**
 * Copyright (C) 2013
 *   Michael Mosmann <michael@mosmann.de>
 *
 * with contributions from
 *    ${lic.developers}
 *
 * 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 de.flapdoodle.logparser.stacktrace;

import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;

import java.util.Collection;
import java.util.List;

public abstract class AbstractStackFrame {

    protected final ExceptionAndMessage _exceptionAndMessage;
    protected final ImmutableList<StackLines> _stackLines;
    protected final CauseBy _cause;

    protected AbstractStackFrame(ExceptionAndMessage exceptionAndMessage, Collection<StackLines> stackLines,
            CauseBy cause) {
        Preconditions.checkArgument(!stackLines.isEmpty(), "stacklines emtpy");
        _exceptionAndMessage = exceptionAndMessage;
        _cause = cause;
        _stackLines = ImmutableList.copyOf(stackLines);
    }

    public ExceptionAndMessage exception() {
        return _exceptionAndMessage;
    }

    public Optional<CauseBy> cause() {
        return Optional.fromNullable(_cause);
    }

    public AbstractStackFrame rootCause() {
        if (_cause != null) {
            return _cause.rootCause();
        }
        return this;
    }

    public ImmutableList<StackLines> stackLines() {
        return _stackLines;
    }

    public At firstAt() {
        return firstStackLines().firstAt();
    }

    public StackLines firstStackLines() {
        return _stackLines.get(0);
    }
}