CdmHeaderProcessingState.java
/* Copyright 2002-2024 CS GROUP
* Licensed to CS GROUP (CS) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* CS 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.orekit.files.ccsds.ndm.cdm;
import org.orekit.errors.OrekitException;
import org.orekit.errors.OrekitMessages;
import org.orekit.files.ccsds.definitions.TimeSystem;
import org.orekit.files.ccsds.section.HeaderKey;
import org.orekit.files.ccsds.utils.ContextBinding;
import org.orekit.files.ccsds.utils.lexical.ParseToken;
import org.orekit.files.ccsds.utils.lexical.TokenType;
import org.orekit.files.ccsds.utils.parsing.ProcessingState;
/** {@link ProcessingState} for {@link CdmHeader CDM header}.
* @author Melina Vanel
* @since 11.2
*/
public class CdmHeaderProcessingState implements ProcessingState {
/** Context binding for header. */
private final ContextBinding context;
/** Parser for the complete message. */
private final CdmParser parser;
/** Simple constructor.
* @param parser parser for the complete message
*/
public CdmHeaderProcessingState(final CdmParser parser) {
this.context = new ContextBinding(
parser::getConventions, parser::isSimpleEOP,
parser::getDataContext, parser::getParsedUnitsBehavior, () -> null,
() -> TimeSystem.UTC, () -> 0.0, () -> 1.0);
this.parser = parser;
}
/** {@inheritDoc} */
@Override
public boolean processToken(final ParseToken token) {
parser.inHeader();
if (Double.isNaN(parser.getHeader().getFormatVersion())) {
// the first thing we expect is the format version
// (however, in XML files it was already set before entering header)
if (parser.getFormatVersionKey() != null &&
parser.getFormatVersionKey().equals(token.getName()) &&
token.getType() == TokenType.ENTRY) {
parser.getHeader().setFormatVersion(token.getContentAsDouble());
return true;
} else {
throw new OrekitException(OrekitMessages.UNSUPPORTED_FILE_FORMAT, token.getFileName());
}
}
try {
return token.getName() != null &&
HeaderKey.valueOf(token.getName()).process(token, context, parser.getHeader());
} catch (IllegalArgumentException iaeH) {
try {
return CdmHeaderKey.valueOf(token.getName()).process(token, context, parser.getHeader());
} catch (IllegalArgumentException iaeC) {
// token has not been recognized
return false;
}
}
}
}