Add more provider constructors

Author: ctmay4

src/main/java/com/imsweb/staging/ExternalStagingFileDataProvider.java

@@ -8,6 +8,9 @@
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Map;
@@ -44,6 +47,28 @@ public class ExternalStagingFileDataProvider extends StagingDataProvider {
     private final Map<String, StagingSchema> _schemas = new HashMap<>();
     private final Map<String, GlossaryDefinition> _glossaryTerms = new HashMap<>();
 
+    /**
+     * Constructor loads all schemas and sets up table cache
+     * @param zipFilePath full path to algorithm zip file
+     * @throws IOException exception for file operations
+     */
+    public ExternalStagingFileDataProvider(Path zipFilePath) throws IOException {
+        super();
+
+        try (InputStream is = Files.newInputStream(zipFilePath)) {
+            init(is);
+        }
+    }
+
+    /**
+     * Constructor loads all schemas and sets up table cache
+     * @param zipFileName full path to algorithm zip file
+     * @throws IOException exception for file operations
+     */
+    public ExternalStagingFileDataProvider(String zipFileName) throws IOException {
+        this(Paths.get(zipFileName));
+    }
+
     /**
      * Constructor loads all schemas and sets up table cache
      * @param is InputStream pointing the zip file

src/test/java/com/imsweb/staging/ExternalStagingFileDataProviderTest.java

@@ -2,8 +2,14 @@
 
 import java.io.IOException;
 import java.io.InputStream;
+import java.nio.file.Path;
+import java.nio.file.Paths;
 
 import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.AssertionsForClassTypes.assertThatThrownBy;
 
 class ExternalStagingFileDataProviderTest extends FileDataProviderTest {
 
@@ -21,4 +27,34 @@ public Staging getStaging() {
         return _STAGING;
     }
 
+    @Test
+    void testConstructorWithPath() throws IOException {
+        Path zipPath = Paths.get("src/test/resources/external_algorithm.zip");
+        ExternalStagingFileDataProvider provider = new ExternalStagingFileDataProvider(zipPath);
+
+        assertThat(provider.getAlgorithm()).isNotBlank();
+        assertThat(provider.getVersion()).isNotBlank();
+        assertThat(provider.getSchemaIds()).isNotEmpty();
+        assertThat(provider.getTableIds()).isNotEmpty();
+    }
+
+    @Test
+    void testConstructorWithString() throws IOException {
+        String zipFileName = "src/test/resources/external_algorithm.zip";
+        ExternalStagingFileDataProvider provider = new ExternalStagingFileDataProvider(zipFileName);
+
+        assertThat(provider.getAlgorithm()).isNotBlank();
+        assertThat(provider.getVersion()).isNotBlank();
+        assertThat(provider.getSchemaIds()).isNotEmpty();
+        assertThat(provider.getTableIds()).isNotEmpty();
+    }
+
+    @Test
+    void testInvalidPathThrowsException() {
+        Path invalidPath = Paths.get("src/test/resources/missing.zip");
+        assertThatThrownBy(() -> new ExternalStagingFileDataProvider(invalidPath))
+                .isInstanceOf(IOException.class)
+                .hasMessageContaining("missing.zip");
+    }
+
 }