/*******************************************************************************
* Copyright 2010 Atos Worldline SAS
*
* Licensed by Atos Worldline SAS under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* Atos Worldline SAS 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 net.padaf.preflight.font;
import static net.padaf.preflight.ValidationConstants.DICTIONARY_KEY_SUBTYPE;
import static net.padaf.preflight.ValidationConstants.DICTIONARY_KEY_TYPE;
import static net.padaf.preflight.ValidationConstants.ERROR_FONTS_DICTIONARY_INVALID;
import static net.padaf.preflight.ValidationConstants.FONT_DICTIONARY_VALUE_COMPOSITE;
import static net.padaf.preflight.ValidationConstants.FONT_DICTIONARY_VALUE_MMTYPE;
import static net.padaf.preflight.ValidationConstants.FONT_DICTIONARY_VALUE_TRUETYPE;
import static net.padaf.preflight.ValidationConstants.FONT_DICTIONARY_VALUE_TYPE0;
import static net.padaf.preflight.ValidationConstants.FONT_DICTIONARY_VALUE_TYPE0C;
import static net.padaf.preflight.ValidationConstants.FONT_DICTIONARY_VALUE_TYPE1;
import static net.padaf.preflight.ValidationConstants.FONT_DICTIONARY_VALUE_TYPE1C;
import static net.padaf.preflight.ValidationConstants.FONT_DICTIONARY_VALUE_TYPE2;
import static net.padaf.preflight.ValidationConstants.FONT_DICTIONARY_VALUE_TYPE3;
import net.padaf.preflight.DocumentHandler;
import net.padaf.preflight.ValidationException;
import org.apache.pdfbox.cos.COSDictionary;
import org.apache.pdfbox.cos.COSName;
import org.apache.pdfbox.cos.COSObject;
/**
* This class returns a FontValidator object according to the Font dictionary.
*/
public class FontValidatorFactory {
public FontValidator getFontValidator(COSObject cObj,
DocumentHandler handler) throws ValidationException {
COSDictionary dic = (COSDictionary) cObj.getObject();
String type = dic.getNameAsString(COSName.getPDFName(DICTIONARY_KEY_TYPE));
String subtype = dic.getNameAsString(COSName
.getPDFName(DICTIONARY_KEY_SUBTYPE));
if ((type == null || "".equals(type))
|| (subtype == null || "".equals(subtype))) {
throw new ValidationException("Type and/or Subtype keys are missing : "
+ ERROR_FONTS_DICTIONARY_INVALID);
} else {
if (FONT_DICTIONARY_VALUE_TRUETYPE.equals(subtype)) {
return new TrueTypeFontValidator(handler, cObj);
} else if (FONT_DICTIONARY_VALUE_MMTYPE.equals(subtype)
|| FONT_DICTIONARY_VALUE_TYPE1.equals(subtype)) {
return new Type1FontValidator(handler, cObj);
} else if (FONT_DICTIONARY_VALUE_TYPE3.equals(subtype)) {
return new Type3FontValidator(handler, cObj);
} else if (FONT_DICTIONARY_VALUE_COMPOSITE.equals(subtype)) {
return new CompositeFontValidator(handler, cObj);
} else if (FONT_DICTIONARY_VALUE_TYPE2.equals(subtype)
|| FONT_DICTIONARY_VALUE_TYPE1C.equals(subtype)
|| FONT_DICTIONARY_VALUE_TYPE0C.equals(subtype)
|| FONT_DICTIONARY_VALUE_TYPE0.equals(subtype)) {
// ---- Font managed by a Composite font.
// this dictionary will be checked by a CompositeFontValidator
return null;
} else {
throw new ValidationException("Unknown font type : " + subtype);
}
}
}
}