Add skip bucket/region/object name validation as special usecase (#1576)

Author: rudgal

api/src/main/java/io/minio/BucketArgs.java

@@ -39,9 +39,13 @@ public abstract static class Builder<B extends Builder<B, A>, A extends BucketAr
       extends BaseArgs.Builder<B, A> {
     private static final Pattern BUCKET_NAME_REGEX =
         Pattern.compile("^[a-z0-9][a-z0-9\\.\\-]{1,61}[a-z0-9]$");
+    protected boolean skipValidation = false;
 
     protected void validateBucketName(String name) {
       validateNotNull(name, "bucket name");
+      if (skipValidation) {
+        return;
+      }
 
       if (!BUCKET_NAME_REGEX.matcher(name).find()) {
         throw new IllegalArgumentException(
@@ -63,7 +67,7 @@ protected void validateBucketName(String name) {
     }
 
     private void validateRegion(String region) {
-      if (region != null && !HttpUtils.REGION_REGEX.matcher(region).find()) {
+      if (!skipValidation && region != null && !HttpUtils.REGION_REGEX.matcher(region).find()) {
         throw new IllegalArgumentException("invalid region " + region);
       }
     }
@@ -80,6 +84,12 @@ public B bucket(String name) {
       return (B) this;
     }
 
+    @SuppressWarnings("unchecked") // Its safe to type cast to B as B extends this class.
+    public B skipValidation(boolean skipValidation) {
+      this.skipValidation = skipValidation;
+      return (B) this;
+    }
+
     @SuppressWarnings("unchecked") // Its safe to type cast to B as B extends this class.
     public B region(String region) {
       validateRegion(region);

api/src/main/java/io/minio/ObjectArgs.java

@@ -43,6 +43,9 @@ public abstract static class Builder<B extends Builder<B, A>, A extends ObjectAr
       extends BucketArgs.Builder<B, A> {
     protected void validateObjectName(String name) {
       validateNotEmptyString(name, "object name");
+      if (skipValidation) {
+        return;
+      }
       for (String token : name.split("/")) {
         if (token.equals(".") || token.equals("..")) {
           throw new IllegalArgumentException(