From 983c65fc5846ab50960e229bbafc586c6336c4ff Mon Sep 17 00:00:00 2001
From: Reinhard Pointner <rednoah@users.noreply.github.com>
Date: Wed, 9 Oct 2013 21:25:21 +0000
Subject: [PATCH] * if history.xml is invalid xml for some reason just ignore
 and override the next time it's written to file

---
 source/net/sourceforge/filebot/History.java | 127 ++++++++------------
 1 file changed, 50 insertions(+), 77 deletions(-)

diff --git a/source/net/sourceforge/filebot/History.java b/source/net/sourceforge/filebot/History.java
index 830952df..972c64e0 100644
--- a/source/net/sourceforge/filebot/History.java
+++ b/source/net/sourceforge/filebot/History.java
@@ -1,11 +1,8 @@
-
 package net.sourceforge.filebot;
 
-
 import static java.util.Collections.*;
 
 import java.io.File;
-import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.util.ArrayList;
@@ -13,159 +10,138 @@ import java.util.Arrays;
 import java.util.Collection;
 import java.util.Date;
 import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 import javax.xml.bind.JAXBContext;
-import javax.xml.bind.JAXBException;
 import javax.xml.bind.Marshaller;
 import javax.xml.bind.Unmarshaller;
 import javax.xml.bind.annotation.XmlAttribute;
 import javax.xml.bind.annotation.XmlElement;
 import javax.xml.bind.annotation.XmlRootElement;
 
-
 @XmlRootElement(name = "history")
 public class History {
-	
+
 	@XmlElement(name = "sequence")
 	private List<Sequence> sequences;
-	
-	
+
 	public History() {
 		this.sequences = new ArrayList<Sequence>();
 	}
-	
-	
+
 	public History(Collection<Sequence> sequences) {
 		this.sequences = new ArrayList<Sequence>(sequences);
 	}
-	
-	
+
 	public static class Sequence {
-		
+
 		@XmlAttribute(name = "date", required = true)
 		private Date date;
-		
+
 		@XmlElement(name = "rename", required = true)
 		private List<Element> elements;
-		
-		
+
 		private Sequence() {
 			// hide constructor
 		}
-		
-		
+
 		public Date date() {
 			return date;
 		}
-		
-		
+
 		public List<Element> elements() {
 			if (elements == null)
 				return emptyList();
-			
+
 			return unmodifiableList(elements);
 		}
-		
-		
+
 		@Override
 		public boolean equals(Object obj) {
 			if (obj instanceof Sequence) {
 				Sequence other = (Sequence) obj;
 				return date.equals(other.date) && elements.equals(other.elements);
 			}
-			
+
 			return false;
 		}
-		
-		
+
 		@Override
 		public int hashCode() {
 			return Arrays.hashCode(new Object[] { elements, date });
 		}
 	}
-	
-	
+
 	public static class Element {
-		
+
 		@XmlAttribute(name = "dir", required = true)
 		private File dir;
-		
+
 		@XmlAttribute(name = "from", required = true)
 		private String from;
-		
+
 		@XmlAttribute(name = "to", required = true)
 		private String to;
-		
-		
+
 		public Element() {
 			// used by JAXB
 		}
-		
-		
+
 		public Element(String from, String to, File dir) {
 			this.from = from;
 			this.to = to;
 			this.dir = dir;
 		}
-		
-		
+
 		public File dir() {
 			return dir;
 		}
-		
-		
+
 		public String from() {
 			return from;
 		}
-		
-		
+
 		public String to() {
 			return to;
 		}
-		
-		
+
 		@Override
 		public boolean equals(Object obj) {
 			if (obj instanceof Element) {
 				Element element = (Element) obj;
 				return to.equals(element.to) && from.equals(element.from) && dir.getPath().equals(element.dir.getPath());
 			}
-			
+
 			return false;
 		}
-		
-		
+
 		@Override
 		public int hashCode() {
 			return Arrays.hashCode(new Object[] { to, from, dir });
 		}
 	}
-	
-	
+
 	public List<Sequence> sequences() {
 		return unmodifiableList(sequences);
 	}
-	
-	
+
 	public void add(Collection<Element> elements) {
 		Sequence sequence = new Sequence();
 		sequence.date = new Date();
 		sequence.elements = new ArrayList<Element>(elements);
-		
+
 		add(sequence);
 	}
-	
-	
+
 	public void add(Sequence sequence) {
 		this.sequences.add(sequence);
 	}
-	
-	
+
 	public void addAll(Collection<Sequence> sequences) {
 		this.sequences.addAll(sequences);
 	}
-	
-	
+
 	public void merge(History history) {
 		for (Sequence sequence : history.sequences()) {
 			if (!sequences.contains(sequence)) {
@@ -173,8 +149,7 @@ public class History {
 			}
 		}
 	}
-	
-	
+
 	public int totalSize() {
 		int i = 0;
 		for (Sequence it : sequences()) {
@@ -182,48 +157,46 @@ public class History {
 		}
 		return i;
 	}
-	
-	
+
 	public void clear() {
 		sequences.clear();
 	}
-	
-	
+
 	@Override
 	public boolean equals(Object obj) {
 		if (obj instanceof History) {
 			History other = (History) obj;
 			return sequences.equals(other.sequences);
 		}
-		
+
 		return false;
 	}
-	
-	
+
 	@Override
 	public int hashCode() {
 		return sequences.hashCode();
 	}
-	
-	
-	public static void exportHistory(History history, OutputStream output) throws IOException {
+
+	public static void exportHistory(History history, OutputStream output) {
 		try {
 			Marshaller marshaller = JAXBContext.newInstance(History.class).createMarshaller();
 			marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
 			marshaller.marshal(history, output);
-		} catch (JAXBException e) {
-			throw new IOException(e);
+		} catch (Exception e) {
+			Logger.getLogger(History.class.getName()).log(Level.SEVERE, "Failed to write history", e);
 		}
 	}
-	
-	
-	public static History importHistory(InputStream stream) throws IOException {
+
+	public static History importHistory(InputStream stream) {
 		try {
 			Unmarshaller unmarshaller = JAXBContext.newInstance(History.class).createUnmarshaller();
 			return ((History) unmarshaller.unmarshal(stream));
-		} catch (JAXBException e) {
-			throw new IOException(e);
+		} catch (Exception e) {
+			Logger.getLogger(History.class.getName()).log(Level.SEVERE, "Failed to read history", e);
+
+			// fail-safe => default to empty history
+			return new History();
 		}
 	}
-	
+
 }