ref #179: added a smooth transition between single digit to two digits

pdf version

sejda-console/src/main/java/org/sejda/cli/model/CliArgumentsWithPdfOutput.java

@@ -19,7 +19,7 @@
  */
 package org.sejda.cli.model;
 
-import org.sejda.conversion.PdfVersionAdapter;
+import org.sejda.conversion.PdfVersionAdapterWithFallback;
 
 import uk.co.flamingpenguin.jewel.cli.Option;
 
@@ -35,5 +35,5 @@ public interface CliArgumentsWithPdfOutput extends TaskCliArguments {
     boolean getCompressed();
 
     @Option(shortName = "v", description = "pdf version of the output document/s {1.2, 1.3, 1.4, 1.5, 1.6 or 1.7}. Default is 1.6. (optional)", defaultValue = "1.6")
-    PdfVersionAdapter getPdfVersion();
+    PdfVersionAdapterWithFallback getPdfVersion();
 }

sejda-console/src/main/java/org/sejda/cli/transformer/BaseCliArgumentsTransformer.java

@@ -130,7 +130,7 @@ private void populateCommonImageOutputParameters(AbstractPdfToImageParameters pa
     private void populateCommonPdfOutputParameters(AbstractPdfOutputParameters parameters,
             CliArgumentsWithPdfOutput taskCliArguments) {
         parameters.setCompress(taskCliArguments.getCompressed());
-        parameters.setVersion(taskCliArguments.getPdfVersion().getEnumValue());
+        parameters.setVersion(taskCliArguments.getPdfVersion().getVersion());
     }
 
     /**

sejda-conversion/src/main/java/org/sejda/conversion/PdfVersionAdapterWithFallback.java

@@ -0,0 +1,52 @@
+/*
+ * Created on 17 gen 2016
+ * Copyright 2015 by Andrea Vacondio (andrea.vacondio@gmail.com).
+ * This file is part of Sejda.
+ *
+ * Sejda is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Sejda is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Sejda.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.sejda.conversion;
+
+import org.sejda.model.pdf.PdfVersion;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Adapter providing a smooth transition between single digit pdf versions (7 for pdf version 1.7) used in sejda-console v1.x to double digit pdf version (1.7 for pdf version 1.7)
+ * used in sejda-console v2.x
+ * 
+ * @author Andrea Vacondio
+ *
+ */
+public class PdfVersionAdapterWithFallback {
+    private static final Logger LOG = LoggerFactory.getLogger(PdfVersionAdapterWithFallback.class);
+
+    private PdfVersion version;
+
+    public PdfVersionAdapterWithFallback(String userFriendlyName) {
+        if (userFriendlyName.matches("[01234567]{1}")) {
+            LOG.warn(
+                    "Single digit PDF version '{}' is deprecated and will be removed in future releases, please use the two digits '1.{}' format",
+                    userFriendlyName, userFriendlyName);
+            this.version = new PdfVersionAdapter("1." + userFriendlyName).getEnumValue();
+        } else {
+            this.version = new PdfVersionAdapter(userFriendlyName).getEnumValue();
+        }
+    }
+
+    public PdfVersion getVersion() {
+        return version;
+    }
+
+}

sejda-conversion/src/test/java/org/sejda/conversion/PdfVersionAdapterWithFallbackTest.java

@@ -0,0 +1,47 @@
+/*
+ * Created on 17 gen 2016
+ * Copyright 2015 by Andrea Vacondio (andrea.vacondio@gmail.com).
+ * This file is part of Sejda.
+ *
+ * Sejda is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Sejda is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Sejda.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.sejda.conversion;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+import org.sejda.model.exception.SejdaRuntimeException;
+import org.sejda.model.pdf.PdfVersion;
+
+/**
+ * @author Andrea Vacondio
+ *
+ */
+public class PdfVersionAdapterWithFallbackTest {
+    @Test
+    public void testPositiveFallback() {
+        assertEquals(PdfVersion.VERSION_1_4, new PdfVersionAdapterWithFallback("4").getVersion());
+    }
+
+    @Test
+    public void testPositive() {
+        assertEquals(PdfVersion.VERSION_1_6, new PdfVersionAdapterWithFallback("1.6").getVersion());
+    }
+
+    @Test(expected = SejdaRuntimeException.class)
+    public void missingPoint() {
+        new PdfVersionAdapterWithFallback("9").getVersion();
+    }
+
+}