1 files changed, 106 insertions, 0 deletions
diff --git a/src/main/java/bitbucketpullrequestbuilder/bitbucketpullrequestbuilder/BitbucketBuildFilter.java b/src/main/java/bitbucketpullrequestbuilder/bitbucketpullrequestbuilder/BitbucketBuildFilter.java
new file mode 100644
index 0000000..eb80d86
--- /dev/null
+++ b/src/main/java/bitbucketpullrequestbuilder/bitbucketpullrequestbuilder/BitbucketBuildFilter.java
@@ -0,0 +1,106 @@
+package bitbucketpullrequestbuilder.bitbucketpullrequestbuilder;
+
+import java.util.logging.Logger;
+import java.util.regex.Pattern;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.logging.Level;
+
+/**
+ * Mutable wrapper
+ */
+class Mutable<T> {
+  private T value;
+  public Mutable() { this.value = null; }
+  public Mutable(T value) { this.value = value; }
+  T get() { return this.value; }
+  void set(T value) { this.value = value; }
+}
+
+abstract class Filter {
+  protected static final Logger logger = Logger.getLogger(BitbucketBuildTrigger.class.getName());
+  
+  public static final String RX_FILTER_FLAG = "r";
+  public static final String RX_FILTER_FLAG_SINGLE = RX_FILTER_FLAG + ":";
+  
+  abstract public boolean apply(String filter, BitbucketCause cause);
+  abstract public boolean check(String filter);
+}
+
+class EmptyFilter extends Filter {
+  @Override
+  public boolean apply(String filter, BitbucketCause cause) { return true; }
+  @Override
+  public boolean check(String filter) { return true; }
+}
+
+class AnyFlag extends Filter {  
+  @Override
+  public boolean apply(String filter, BitbucketCause cause) { return true; }
+  @Override
+  public boolean check(String filter) { return filter.isEmpty() || filter.contains("*") || filter.toLowerCase().contains("any"); }
+}
+
+class OnlyDestFlag extends Filter {  
+  @Override
+  public boolean apply(String filter, BitbucketCause cause) { 
+    return Pattern.compile(
+      filter.startsWith(RX_FILTER_FLAG_SINGLE) ? filter.substring(RX_FILTER_FLAG_SINGLE.length()) : Pattern.quote(filter),
+    Pattern.CASE_INSENSITIVE).matcher(cause.getTargetBranch()).find();
+  } 
+  @Override
+  public boolean check(String filter) { 
+    return !(Pattern.matches("(s:)|(d:)", filter));
+  }
+}
+
+class SourceDestFlag extends Filter {  
+  @Override
+  public boolean apply(String filter, BitbucketCause cause) { 
+    return false;
+  } 
+  @Override
+  public boolean check(String filter) { 
+    return Pattern.matches("(s:)|(d:)", filter);
+  }
+}
+
+/**
+ * Created by maxvodo
+ */
+public class BitbucketBuildFilter {  
+  private static final Logger logger = Logger.getLogger(BitbucketBuildTrigger.class.getName());
+  
+  private final String filter;
+  private Filter currFilter = null;
+  private static final List<Filter> AvailableFilters;
+  
+  static {
+    ArrayList<Filter> filters = new ArrayList<Filter>();
+    filters.add(new AnyFlag());
+    filters.add(new OnlyDestFlag());
+    filters.add(new EmptyFilter());
+    AvailableFilters = filters;
+  }
+  
+  public BitbucketBuildFilter(String f) {
+    this.filter = f;
+    this.buildFilter(this.filter);
+  }
+  
+  private void buildFilter(String filter) {
+    for(Filter f : AvailableFilters) {
+      if (f.check(filter)) {
+        this.currFilter = f;
+        logger.log(Level.INFO, "Using filter: {0}", f.getClass().getSimpleName());
+        break;
+      }
+    }
+    logger.warning("No available filters to use ...");  
+  }
+  
+  public boolean approved(BitbucketCause cause) {    
+    return this.currFilter.apply(this.filter, cause);
+  }  
+}