1 files changed, 106 insertions, 0 deletions
diff --git a/src/net/sourceforge/plantuml/error/PSystemErrorUtils.java b/src/net/sourceforge/plantuml/error/PSystemErrorUtils.java
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+++ b/src/net/sourceforge/plantuml/error/PSystemErrorUtils.java
@@ -0,0 +1,106 @@
+/* ========================================================================
+ * PlantUML : a free UML diagram generator
+ * ========================================================================
+ *
+ * (C) Copyright 2009-2020, Arnaud Roques
+ *
+ * Project Info:  http://plantuml.com
+ * 
+ * If you like this project or if you find it useful, you can support us at:
+ * 
+ * http://plantuml.com/patreon (only 1$ per month!)
+ * http://plantuml.com/paypal
+ * 
+ * This file is part of PlantUML.
+ *
+ * PlantUML is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * PlantUML 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 General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
+ * USA.
+ *
+ *
+ * Original Author:  Arnaud Roques
+ *
+ */
+package net.sourceforge.plantuml.error;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+import net.sourceforge.plantuml.ErrorUml;
+import net.sourceforge.plantuml.StringLocated;
+import net.sourceforge.plantuml.core.Diagram;
+import net.sourceforge.plantuml.core.UmlSource;
+
+public class PSystemErrorUtils {
+
+	// public static AbstractPSystemError buildV1(UmlSource source, ErrorUml singleError, List<String> debugLines) {
+	// return new PSystemErrorV1(source, singleError, debugLines);
+	// }
+
+	public static PSystemError buildV2(UmlSource source, ErrorUml singleError, List<String> debugLines,
+			List<StringLocated> list) {
+		// return new PSystemErrorV1(source, singleError, debugLines);
+		return new PSystemErrorV2(source, list, singleError);
+	}
+
+	public static PSystemError merge(Collection<PSystemError> ps) {
+		UmlSource source = null;
+		final List<ErrorUml> errors = new ArrayList<ErrorUml>();
+		// final List<String> debugs = new ArrayList<String>();
+		final List<PSystemErrorV2> errorsV2 = new ArrayList<PSystemErrorV2>();
+		for (PSystemError system : ps) {
+			if (system == null) {
+				continue;
+			}
+			if (system.getSource() != null && source == null) {
+				source = system.getSource();
+			}
+			errors.addAll(system.getErrorsUml());
+			// if (system instanceof PSystemErrorV1) {
+			// debugs.addAll(((PSystemErrorV1) system).debugLines);
+			// if (((PSystemErrorV1) system).debugLines.size() > 0) {
+			// debugs.add("-");
+			// }
+			// }
+			if (system instanceof PSystemErrorV2) {
+				errorsV2.add((PSystemErrorV2) system);
+			}
+		}
+		if (source == null) {
+			throw new IllegalStateException();
+		}
+		if (errorsV2.size() > 0) {
+			return mergeV2(errorsV2);
+		}
+		throw new IllegalStateException();
+		// return new PSystemErrorV1(source, errors, debugs);
+	}
+
+	private static PSystemErrorV2 mergeV2(List<PSystemErrorV2> errorsV2) {
+		PSystemErrorV2 result = null;
+		for (PSystemErrorV2 err : errorsV2) {
+			if (result == null || result.size() < err.size()) {
+				result = err;
+			}
+		}
+		return result;
+	}
+
+	public static boolean isDiagramError(Class<? extends Diagram> type) {
+		return PSystemError.class.isAssignableFrom(type);
+		// return type == PSystemErrorV1.class;
+	}
+
+}