3 files changed, 65 insertions, 1 deletions
diff --git a/library/SSRS/Object/ExecutionInfo.php b/library/SSRS/Object/ExecutionInfo.php
index 0a723db..f1f9d56 100755
--- a/library/SSRS/Object/ExecutionInfo.php
+++ b/library/SSRS/Object/ExecutionInfo.php
@@ -84,6 +84,40 @@ class ExecutionInfo extends ObjectAbstract {
         return null;
     }
 
+    public function hasOutstandingDependencies() {
+        $parameters = $this->getReportParameters();
+        foreach ($parameters AS $parameter) {
+            if ($parameter->hasOutstandingDependencies()) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public function hasMissingValidValues() {
+        $parameters = $this->getReportParameters();
+        foreach ($parameters AS $parameter) {
+            if ($parameter->hasMissingValidValue()) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public function canRender() {
+        if ($this->hasOutstandingDependencies()) {
+            return false;
+        }
+
+        if ($this->hasMissingValidValues()) {
+            return false;
+        }
+
+        return true;
+    }
+
     public function __sleep() {
         $this->executionInfo = null;
         return array('data');
diff --git a/library/SSRS/Object/ReportOutput.php b/library/SSRS/Object/ReportOutput.php
index ac17fe4..70d7928 100755
--- a/library/SSRS/Object/ReportOutput.php
+++ b/library/SSRS/Object/ReportOutput.php
@@ -11,7 +11,9 @@ class ReportOutput extends ObjectAbstract {
         $this->verifyCachePath($localCachePath);
 
         $rootPath = rtrim($localCachePath, '/');
-        foreach ($this->StreamIds->string as $streamId) {
+
+        $streamIds = $this->getStreamIds();
+        foreach ($streamIds as $streamId) {
             $path = $rootPath . '/' . $streamId;
             $stream = $report->renderStream($format, $streamId);
 
@@ -22,6 +24,10 @@ class ReportOutput extends ObjectAbstract {
         return $this;
     }
 
+    public function getStreamIds() {
+        return is_array($this->StreamIds->string) ? $this->StreamIds->string : array($this->StreamIds->string);
+    }
+
     public function download($filename) {
         header("Cache-control: max-age=3600, must-revalidate");
         header("Pragma: public");
diff --git a/library/SSRS/Object/ReportParameter.php b/library/SSRS/Object/ReportParameter.php
index 60a09a2..d00e464 100755
--- a/library/SSRS/Object/ReportParameter.php
+++ b/library/SSRS/Object/ReportParameter.php
@@ -95,11 +95,27 @@ class ReportParameter extends ObjectAbstract {
      *
      * @return bool 
      */
+    public function hasMissingValidValue() {
+        return ($this->getState() == 'MissingValidValue');
+    }
+
+    /**
+     *
+     * @return bool 
+     */
     public function getState() {
         return key_exists('State', $this->data) ? $this->data['State'] : null;
     }
 
     /**
+     * 
+     * @return string
+     */
+    public function getType() {
+        return $this->data['Type'];
+    }
+
+    /**
      *
      * @return bool 
      */
@@ -115,4 +131,12 @@ class ReportParameter extends ObjectAbstract {
         return ($this->isMultiValue() || (!empty($this->data['ValidValues']) && is_array($this->data['ValidValues']) && count($this->data['ValidValues']) > 0));
     }
 
+    /**
+     * 
+     * @return bool
+     */
+    public function isAllowBlank() {
+        return $this->data['AllowBlank'];
+    }
+
 }