X-Git-Url: http://git.argeo.org/?a=blobdiff_plain;f=org.argeo.util%2Fsrc%2Forg%2Fargeo%2Futil%2FLangUtils.java;h=8810d646335056a604791cec8a545b27931be1b9;hb=77a5498dd5d10d2442127022efd6501a7dbddbae;hp=3b29e868c13291b05751869174ce39e67ffc26a3;hpb=82dbb6068c494047bce1ab170f2f6b8b608b2a42;p=lgpl%2Fargeo-commons.git

diff --git a/org.argeo.util/src/org/argeo/util/LangUtils.java b/org.argeo.util/src/org/argeo/util/LangUtils.java
index 3b29e868c..8810d6463 100644
--- a/org.argeo.util/src/org/argeo/util/LangUtils.java
+++ b/org.argeo.util/src/org/argeo/util/LangUtils.java
@@ -3,14 +3,18 @@ package org.argeo.util;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
+import java.io.Writer;
 import java.nio.file.Files;
 import java.nio.file.Path;
+import java.nio.file.StandardOpenOption;
 import java.util.Dictionary;
 import java.util.Enumeration;
 import java.util.Hashtable;
-import java.util.Map;
 import java.util.Properties;
 
+import javax.naming.InvalidNameException;
+import javax.naming.ldap.LdapName;
+
 public class LangUtils {
 	/*
 	 * NON-API OSGi
@@ -92,6 +96,36 @@ public class LangUtils {
 		}
 	}
 
+	public static void appendAsLdif(String dnBase, String dnKey, Dictionary<String, Object> props, Path path)
+			throws IOException {
+		if (props == null)
+			throw new IllegalArgumentException("Props cannot be null");
+		Object dnValue = props.get(dnKey);
+		String dnStr = dnKey + '=' + dnValue + ',' + dnBase;
+		LdapName dn;
+		try {
+			dn = new LdapName(dnStr);
+		} catch (InvalidNameException e) {
+			throw new IllegalArgumentException("Cannot interpret DN " + dnStr, e);
+		}
+		if (dnValue == null)
+			throw new IllegalArgumentException("DN key " + dnKey + " must have a value");
+		try (Writer writer = Files.newBufferedWriter(path, StandardOpenOption.APPEND, StandardOpenOption.CREATE)) {
+			writer.append("\ndn: ");
+			writer.append(dn.toString());
+			writer.append('\n');
+			for (Enumeration<String> keys = props.keys(); keys.hasMoreElements();) {
+				String key = keys.nextElement();
+				Object value = props.get(key);
+				writer.append(key);
+				writer.append(": ");
+				// FIXME deal with binary and multiple values
+				writer.append(value.toString());
+				writer.append('\n');
+			}
+		}
+	}
+
 	public static Dictionary<String, Object> loadFromProperties(Path path) throws IOException {
 		Properties toLoad = new Properties();
 		try (InputStream in = Files.newInputStream(path)) {
@@ -102,6 +136,27 @@ public class LangUtils {
 			res.put(key.toString(), toLoad.get(key));
 		return res;
 	}
+	
+	/*
+	 * EXCEPTIONS
+	 */
+	/**
+	 * Chain the messages of all causes (one per line, <b>starts with a line
+	 * return</b>) without all the stack
+	 */
+	public static String chainCausesMessages(Throwable t) {
+		StringBuffer buf = new StringBuffer();
+		chainCauseMessage(buf, t);
+		return buf.toString();
+	}
+
+	/** Recursive chaining of messages */
+	private static void chainCauseMessage(StringBuffer buf, Throwable t) {
+		buf.append('\n').append(' ').append(t.getClass().getCanonicalName())
+				.append(": ").append(t.getMessage());
+		if (t.getCause() != null)
+			chainCauseMessage(buf, t.getCause());
+	}
 
 	/** Singleton constructor. */
 	private LangUtils() {