1 files changed, 62 insertions, 0 deletions
diff --git a/bundle-plugin/src/main/java/com/yahoo/container/plugin/classanalysis/ExportPackageAnnotation.java b/bundle-plugin/src/main/java/com/yahoo/container/plugin/classanalysis/ExportPackageAnnotation.java
new file mode 100644
index 00000000000..d2da9b5a226
--- /dev/null
+++ b/bundle-plugin/src/main/java/com/yahoo/container/plugin/classanalysis/ExportPackageAnnotation.java
@@ -0,0 +1,62 @@
+// Copyright 2018 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.container.plugin.classanalysis;
+
+import java.util.Objects;
+import java.util.regex.Pattern;
+
+/**
+ * @author Tony Vaagenes
+ * @author ollivir
+ */
+public class ExportPackageAnnotation {
+    private final int major;
+    private final int minor;
+    private final int micro;
+    private final String qualifier;
+
+    private static final Pattern QUALIFIER_PATTERN = Pattern.compile("[\\p{Alpha}\\p{Digit}_-]*");
+
+    public ExportPackageAnnotation(int major, int minor, int micro, String qualifier) {
+        this.major = major;
+        this.minor = minor;
+        this.micro = micro;
+        this.qualifier = qualifier;
+
+        requireNonNegative(major, "major");
+        requireNonNegative(minor, "minor");
+        requireNonNegative(micro, "micro");
+        if (QUALIFIER_PATTERN.matcher(qualifier).matches() == false) {
+            throw new IllegalArgumentException(
+                    exportPackageError(String.format("qualifier must follow the format (alpha|digit|'_'|'-')* but was '%s'.", qualifier)));
+        }
+    }
+
+    public String osgiVersion() {
+        return String.format("%d.%d.%d", major, minor, micro) + (qualifier.isEmpty() ? "" : "." + qualifier);
+    }
+
+    private static String exportPackageError(String msg) {
+        return "ExportPackage anntotation: " + msg;
+    }
+
+    private static void requireNonNegative(int i, String fieldName) {
+        if (i < 0) {
+            throw new IllegalArgumentException(exportPackageError(String.format("%s must be non-negative but was %d.", fieldName, i)));
+        }
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o)
+            return true;
+        if (o == null || getClass() != o.getClass())
+            return false;
+        ExportPackageAnnotation that = (ExportPackageAnnotation) o;
+        return major == that.major && minor == that.minor && micro == that.micro && Objects.equals(qualifier, that.qualifier);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(major, minor, micro, qualifier);
+    }
+}