Weeks 5 and 6.

1 files changed, 86 insertions, 7 deletions

diff --git a/src/FontFamily.java b/src/FontFamily.java
index cff4f87..59a458d 100644
--- a/src/FontFamily.java
+++ b/src/FontFamily.java
@@ -28,9 +28,10 @@ public class FontFamily {
 	private String designer;
 	/* total views, 7day views, 30day views, 90day views, year views.
 	Taken from popularity.json. */
+	final String[] popularityMetrics = {"7day", "30day", "90day", "year"};
 	private HashMap<String,Long> views;
-	private String license;
-	private String category;
+	private String license; // Distribution license.
+	private String category; // Vague category.
 	/* popularity.json and families.csv are shared among all families.
 	Have their associated objects passed from outside. */
 
@@ -38,16 +39,21 @@ public class FontFamily {
 	 * Constructor.
 	 */
 	public FontFamily(JSONReader metadata, JSONReader popularity, CSVReader styles) {
-		this.metadata = metadata;
-		parseMetadata(metadata);
-		parsePopularity(popularity);
-		parseStyles(styles);
+		this.metadata = metadata; // Set the instance's metadata to passed value. */
+		parseMetadata(metadata); // Parse the metadata.
+
+		views = new HashMap<String,Long>(); // Instantiate views hash map.
+		parsePopularity(popularity); // Parse the popularity data
+
+		this.styles = new HashMap<String,Integer>(); // Instantiate styles hash map
+		parseStyles(styles); // Parse the styles data
 	}
 
 	/**
 	 * Parse metadata.
 	 */
 	private void parseMetadata(JSONReader metadata) {
+		/* Parse the given fields. See their values described near the top of the class definition. */
 		familyName = metadata.get("name");
 		dateAdded = metadata.get("date_added");
 		subsets = metadata.getAll("subsets");
@@ -60,18 +66,91 @@ public class FontFamily {
 	 * Parse popularity.
 	 */
 	private void parsePopularity(JSONReader popularity) {
+		String popularityJson = popularity.getFamily(familyName); // Block of JSON for this family
+		if (popularityJson == null) {
+			/* Not all families have popularity metadata, just most. */
+			return;
+		}
+
+		/* For each timeframe provided in popularity.json, parse as long and add to hash map. */
+		for (String timeframe : popularityMetrics) {
+			String timeframeKey = "\"" + timeframe + "\":"; // JSON key
+			int timeframeIndex = popularityJson.indexOf(timeframeKey); // Index of JSON key
+
+			String viewsKey = "\"views\": "; // JSON key for views following timeframe key
+			int viewsIndex = popularityJson.indexOf(viewsKey, timeframeIndex);
+
+			int start = viewsIndex + viewsKey.length(); // Start of data after key
+			int end = popularityJson.indexOf(",", start); // End of data before next comma
+
+			long value = 0;
+			/* Parse views as long. */
+			try {
+				value = Long.parseLong(popularityJson.substring(start, end));
+			/* If fail to parse as long, something is wrong with popularity.json.
+			2^63 is a big number to overflow. */
+			} catch (NumberFormatException e) {
+				System.out.println("Failed to parse " + e.getMessage());
+				System.exit(-1);
+			}
+
+			views.put(timeframe, value); // Add the parsed long to the hash map
+		}
+
+		/* Parse total views for given family. */
+		try {
+			views.put("total", Long.parseLong(JSONReader.get(popularityJson, "totalViews")));
+		/* If fail to parse as long, something is wrong with popularity.json.
+		2^63 is a big number to overflow. */
+		} catch (NumberFormatException e) {
+				System.out.println("Failed to parse " + e.getMessage());
+				System.exit(-1);
+		}
+
 	}
 
 	/**
 	 * Parse styles.
 	 */
-	private void parseStyles(CSVReader styles) {
+	private void parseStyles(CSVReader styleCsv) {
+		int len = styleCsv.getLength(); // Lines of body in CSV
+
+		/* Styles CSV has three header fields: Family, Group/Tag, and Weight. */
+		for (int i = 0; i < len; i++) {
+			/* If the current row contains data for the given family, add that data. */
+			if (familyName.equals(styleCsv.get(i, "Family"))) {
+				try {
+					/* Add the Group/Tag and the associated weight. */
+					styles.put(styleCsv.get(i, "Group/Tag"),
+						Integer.parseInt(styleCsv.get(i, "Weight")));
+				/* If unable to parse as integer, something is wrong with families.csv. */
+				} catch (NumberFormatException e) {
+					System.out.println("Unable to parse " + e.getMessage());
+					System.exit(-1);
+				}
+			}
+
+		}
 	}
 	
+	/**
+	 * @return family name
+	 */
 	public String getFamilyName() {
 		return familyName;
 	}
+
+	/**
+	 * @return unicode subsets.
+	 */
 	public String[] getSubsets() {
 		return subsets;
 	}
+
+	/**
+	 * @return views hash map
+	 */
+	public HashMap<String,Long> getViews() {
+		return views;
+	}
 }