com.pronoia.hapi.hamcrest.message.AbstractMessageSegmentMatcher Maven / Gradle / Ivy

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/**
 * 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 com.pronoia.hapi.hamcrest.message;

import ca.uhn.hl7v2.model.Message;
import ca.uhn.hl7v2.model.Segment;

import org.hamcrest.Description;
import org.hamcrest.TypeSafeDiagnosingMatcher;

import static com.pronoia.hapi.HapiTestUtil.encode;
import static com.pronoia.hapi.HapiTestUtil.findOptionalNonEmptySegment;


public abstract class AbstractMessageSegmentMatcher extends TypeSafeDiagnosingMatcher {
    final String expectedSegmentName;
    final String expected;

    public AbstractMessageSegmentMatcher(String expectedSegmentName, String expected) {
        this.expectedSegmentName = expectedSegmentName;
        this.expected = expected;
    }

    protected abstract boolean doMatches(String actual);

    @Override
    protected boolean matchesSafely(Message actualMessage, Description mismatchDescription) {
        Segment actualSegment = findOptionalNonEmptySegment(expectedSegmentName, actualMessage);
        if (actualSegment == null) {
            mismatchDescription.appendText(" segment not found in message ");
            return false;
        }

        String actual = encode(actualSegment);
        if (!doMatches(actual)) {
            mismatchDescription.appendValue(actual);
            return false;
        }

        return true;
    }

}